Features
Raising of the Kotmale dam – misconceptions and facts

By Asoka Herath
BSc (Geology Hons); MSc (Engineering Geology), CEng.
Over the past few months, there has been considerable interests among not only geoscientists and engineers but also ordinary people in the potential risks faced by two of the major hydropower projects constructed in the central highlands, namely the Victoria and Kotmale projects. These projects have come into the limelight owing to some minor seismic tremors felt in the Victoria area, together with the recent announcement of the intention to raise the Kotmale dam. Alarm bells are ringing that seismic activity may jeopardize the integrity of the Victoria dam and the raising of Kotmale may result in dam failure. Should these dams fail, they will be the biggest manmade disasters our country has ever faced. This risk has prompted suggestions from the people higher up that we should seek advice from foreign experts.
Various opinions from the leading geoscientists of the country, regarding the causes and effects of this unusual activity were aired through the media recently. Some have attributed the seismic tremors to limestone quarrying in the Victoria reservoir area, some as the result of neo-tectonic movements of the central highlands, yet some others said they are reservoir-induced earthquakes. Those who are interested in the fundamentals of such activity may find the presentation in this link useful (https://www.youtube.com/watch?v=7huzvuU9TEI).
The intention of this article is to provide an insight into the geotechnical issues that influence the Kotmale Project, the risks, and to address some misconceptions people may have regarding the project. I take the liberty of writing on these issues as a person who has an in-depth knowledge of the Project by working from the site investigation phase through to construction completion, the later years as the Senior Engineering Geologist, leading the project geoscientist team.
The Project
Kotmale was meant to be the main upstream storage reservoir under the Mahaweli development scheme launched in the 1960s. It will regulate the Mahaweli waters, while providing a substantial energy component. The capacity of the reservoir will be more than doubled by the proposed raising of the dam, approximately by 30 m. The project was inaugurated in 1979 and funded by Sweden. Sir William Halcrow and Partners of UK (Halcrow) with Central Engineering Consultancy Bureau of Sri Lanka (CECB) was the design engineer and Skanska of Sweden was the contractor.
Geology of the Project Area
To understand the project risks, it is essential to understand the geology and structure of the project area. The area is underlain by Pre-Cambrian age metamorphic rocks comprising predominantly of two rock types, charnokite (gneiss) and crystalline limestone (dolomite or marble) with minor quartzites. The limestone is sandwiched between layers of charnokite gneiss.
The rock units are folded into a gentle anticlinorium (an arch like structure-convex shape) which has a slight plunge downstream. The axis of the anticline trends northwest and falls on the right abutment in the dam area. As such the dam foundation rocks have a slight inclination (15°-25°) downstream and into the abutments.
Charnokite is a very strong resistant rock, which does not breakdown easily while limestone deteriorates and erodes more easily. The initial site investigation drilling in the Kotmale valley found limestone thickness varied from 20 m to 130 m within the project area.
The limestone consists mainly of calcium carbonate (CaCO3) and partly magnesian carbonate (MgCO3). Carbonates dissolves in acidic water (acid rain) and forms solution cavities. These cavities have the potential to create leaks from the reservoirs.
Formation of the Kotmale Valley
The Kotmale valley is an amphitheatre-like valley reshaped by the erosional activity of the Kotmale Oya for millennia. It is approximately 5 km wide at the widest point, is surrounded by high rock cliffs up to 300 m high on both flanks, which converge at the Kadadora village; the site of the dam construction. The valley forming process was a combination of differential weathering and erosion of the underlying limestone unit, resulting in the collapse of overlying more resistant rock units. The basal slopes of the cliffs consist of accumulated debris of rocks and soil derived from the cliffs (termed as scree or talus). Historically these talus slopes were in perpetual slow motion (creep) towards the river. They were subjected to numerous landslides, typically during or after heavy rain events. Generally, the Kotmale valley was infamous for landslide activity.
History of Kotmale Project investigations
The location of the dam site had been selected for the seemingly favourable topography formed by the converging valley flanks. One of the first jobs assigned to me when I joined the CECB in 1978 as a young engineering geologist, was to map four exploratory tunnels driven into the abutments of the proposed dam and report the rock conditions. Our evaluation indicated the left abutment had very poor rock conditions not suitable for a dam foundation.
In 1979, to evaluate the landslide risk to the project, Halcrow carried out a landslide survey of the project area. This survey was done due to the frequent landslide activity in the Kothmale area, and its similarities to the Vajont Dam disaster that occurred in Italy in 1963, which wiped out several downstream towns resulting about 2500 deaths.
This study identified the left abutment as a settled block (subsided en mass); limestone solution the likely cause. It strongly recommended to move the damsite downstream and monitor the impressive cliffs on the left flank of the valley for potential movements.
Evaluation by a panel of experts
As these findings were major issues impacting the viability of the Project, the Mahaweli Authority of Sri Lanka as the owner of the project, in early 1980 engaged a panel of foreign experts who were the leaders in the fields of rock and soil mechanics, to evaluate the potential issues and provide recommendations. This panel endorsed the relocation of the damsite.
Subsequently, the dam axis was moved approximately 200 m downstream from the original location.
Nature and distribution of the limestone
At the new location, the limestone was at a much greater depth below the dam foundation compared to the original site as shown in Figure 1. Even so, solution cavities were observed in the contact zone and within the limestone itself identified by drilling and close circuit television (CCTV) inspections carried out in the drillholes. Our best estimate indicated small cavities, however a drillhole represents only a small area, therefore the existence of larger cavities could not be ruled out.
Leakage through cavernous limestone is widespread from the reservoirs built in our hill country. The Samanalawewa Project is the best example where significant leakage had been occurring through a cavernous limestone under the right abutment since the impoundment, which could not be sealed.
Continuity of the Kotmale limestone
Investigations were carried out to establish the continuity of the Kotmale limestone to downstream areas in view of potential leakage which were inconclusive. The recent geological map for the Kandy-Nuwara-Eliya districts (GSMB), I am convinced that the Kotmale limestone continues to Gampola-Atabage Valley and further to the Victoria Reservoir as a major rock unit. The limestone quarrying in the Victoria Reservoir area occurs in the same unit, which caused the recent furore about seismic events allegedly caused by blasting. Whilst I do not believe there is (or will be) significant leakage from Kotmale Reservoir, future raising of the dam may enhance leakage if it exists which needs evaluation.
Water tightness of the dam foundation
To eliminate the risk of water leakage through the limestone under the dam foundation, it was extensively grouted from a grouting gallery constructed below the dam level (see Figure 1). Generally, the grout intakes were low. Nevertheless, few holes required significant amounts of grout before they could be sealed. Subsequent water pressure testing indicated the limestone unit was properly sealed and the foundation was watertight.
Monitoring of the cliffs and other landslides
During the initial impoundment, the cliffs were inspected by walkover surveys and by periodic monitoring with geodetic surveying. Movements of any significance, precursor of an impending major failure were not recorded during the early years after construction.
Reservoir Induced Seismicity (RIS)
One important consideration in the construction of large reservoirs is the potential for reservoir induced seismicity (RIS). RIS is the incidence of earthquakes triggered due to the impoundment of water behind a dam. A simplistic explanation is that reservoirs trigger earth tremors due to the load of water which could activate otherwise dormant faults, the energy released causing earth tremors.
Halcrow decided to investigate the risk of movement of some major structures present in the Kotmale reservoir area upon impoundment, which could potentially induce seismic events. Consequently, a micro-seismic monitoring network (MSMN) consisting of four monitoring stations was established around Kotmale project in 1981. The monitoring program was managed by the CECB and continued until the early 90s.
Published data (Fernando & Kulasinghe 1985) show that the maximum event recorded at Kotmale during the first two and half years of monitoring, was an event of 2.25 magnitude (Richter Scale), located far away from the project area. The monitoring led to the conclusion that the potential for RIS at Kotmale was extremely low or non-existent. However, in view of the recent seismic events recorded around Victoria, it will be prudent to revisit the monitoring records from the Kotmale network, presumably archived by the CECB.
Potential risks from future raising
The Kotmale project infrastructure, were designed and constructed for future raising. Theraised dam simply achieves the original vision of the project, as the main upstream storage reservoir and increases power output.
In my opinion the geotechnical risks arising from the raising of the Kotmale dam are as follows:
= The raised water level in the reservoir will fully inundate the scree slopes and reach the base of the left bank cliffs with potential to create major landslides. Cliff monitoring should be re-established using modern methods such as satellite based synthetic aperture radar interferometry (inSAR).
= There is potential for leakage through the limestone with raised water levels. All evidence suggests the limestone under the dam was properly sealed. Leakage from the reservoir flanks cannot be prevented, which is not a fatal flaw to the project. Requirement for abutment sealing should be revisited.
= It will be useful to re-establish the monitoring program of stream gauging in the Gampola-Atabage valley to investigate if any leakage will occur from Kotmale to Atabage valley. This should be initiated before the dam raising.
= All evidence points to reservoir induced seismicity is a non-issue for Kotmale Project.
Finally, I strongly advocate the raising of the dam for the following reasons:
= The original project infrastructure was developed with the intention of future raising.
= There are potential risks but not fatal flaws to the viability of the Project. These risks can be mitigated.
= People were evacuated from their ancestral lands going under the reservoir and if the project is not completed as originally intended, then this relocation of people was without merit and a grave injustice to them.
= The country unnecessarily lost approximately 30 MW of power for more than 35 years.
The potential risks with the raising of the Kotmale dam discussed here need to be evaluated, and if the need arise, they should be mitigated and managed using local expertise. In my opinion, what Sri Lanka lacks is good project managers vital in successful implementation of projects of such enormous national importance. In hindsight, the Kotmale reservoir should have been built to the full capacity at the first instance.
(The author currently works as a Principal Geotechnical Engineer with AMC Consultants Pty Ltd, Perth, Australia, and can be contacted at hma1904@gmail.com).
Features
Democracy faces tougher challenges as political Right beefs-up presence

It is becoming increasingly evident that the democracy-authoritarianism division would be a major polarity in international politics going forward. It shouldn’t come as a surprise if quite a few major states of both East and West gain increasing inspiration from the ‘world’s mightiest democracy’ under President Donald Trump from now on and flout the core principles of democratic governance with impunity.
It is the political Right that would gain most might in this evolving new scheme of things. Whether it be the US itself, France, Israel or Turkey, to name just a few countries in the news, it is plain to see that the Right is unleashing its power with hardly a thought for the harm being done to key democratic institutions and norms.
In fact, Donald Trump and his Republican hard liners led from the front, so to speak, in this process of unleashing the power of the Right in contemporary times. It remains a very vital piece of history that the Right in the US savaged democracy’s most valued institutions on January 6, 2021, when it ran amok with the tacit backing of Trump in the US Capitol.
What was being challenged by the mob most was the ‘will of the people’ which was manifest in the latter’s choice of Joe Biden as US President at the time. To date Trump does not accept that popular verdict and insists that the election in question was a flawed one. He does so in the face of enlightened pronouncements to the contrary.
The US Right’s protégé state, Israel, is well on course to doing grave harm to its democratic institutions, with the country’s judiciary being undermined most. To cite two recent examples to support this viewpoint, the Israeli parliament passed a law to empower the country’s election officials to appoint judges, while Prime Minister Netanyahu has installed the new head of the country’s prime security agency, disregarding in the process a Supreme Court decision to retain the former head.
Such decisions were made by the Netanyahu regime in the face of mounting protests by the people. While nothing new may be said if one takes the view that Israel’s democratic credentials have always left much to be desired, the downgrading of a democratic country’s judiciary is something to be sorely regretted by democratic opinion worldwide. After all, in most states, it is the judiciary that ends up serving the best interests of the people.
Meanwhile in France, the indications are that far Right leader Marine Le Pen would not be backing down in the face of a judicial verdict that pronounces her guilty of corruption that may prevent her from running for President in 2027. She is the most popular politician in France currently and it should not come as a surprise if she rallies further popular support for herself in street protests. Among other things, this will be proof of the growing popular appeal of the political Right. Considering that France has been a foremost democracy, this is not good news for democratic opinion.
However, some heart could be taken from current developments in the Gaza and Turkey where the people are challenging their respective dominant governing forces in street protests largely peacefully. In the Gaza anti-Hamas protests have broken out demanding of the group to step down from power, while in Turkey, President Erdogan’s decades-long iron-fist rule is being challenged by pro-democracy popular forces over the incarceration of his foremost political rival.
Right now, the Turkish state is in the process of quashing this revolt through a show of brute force. Essentially, in both situations the popular demand is for democracy and accountable governance and such aims are generally anathema in the ears of the political Right whose forte is repressive, dictatorial rule.
The onus is on the thriving democracies of the world to ensure that the Right anywhere is prevented from coming to power in the name of the core principles and values of democracy. Right now, it is the European Union that could fit into this role best and democratic opinion is obliged to rally behind the organization. Needless to say, peaceful and democratic methods should be deployed in this historic undertaking.
Although the UN is yet to play an effective role in the current international situation, stepped up efforts by it to speed up democratic development everywhere could yield some dividends. Empowerment of people is the goal to be basically achieved.
Interestingly, the Trump administration could be seen as being in league with the Putin regime in Russia at present. This is on account of the glaringly Right wing direction that the US is taking under Trump. In fact, the global balance of political forces has taken an ironic shift with the hitherto number one democracy collaborating with the Putin regime in the latter’s foreign policy pursuits that possess the potential of plunging Europe into another regional war.
President Trump promised to bring peace to the Ukraine within a day of returning to power but he currently is at risk of cutting a sorry figure on the world stage because Putin is far from collaborating with his plans regarding Ukraine. Putin is promising the US nothing and Ukraine is unlikely to step down from the position it has always held that its sovereignty, which has been harmed by the Putin regime, is not negotiable.
In fact, the China-Russia alliance could witness a firming-up in the days ahead. Speculation is intense that the US is contemplating a military strike on Iran, but it would face strong opposition from China and Russia in the event of such an adventurist course of action. This is on account of the possibility of China and Russia continuing to be firm in their position that Western designs in the Gulf region should be defeated. On the other hand, Iran could be expected to hit back strongly in a military confrontation with the US.
Considering that organizations such as the EU could be expected to be at cross-purposes with the US on the Ukraine and connected questions, the current world situation could not be seen as a replication of the conventional East-West polarity. The East, that is mainly China and Russia, is remaining united but not so the West. The latter has broadly fragmented into a democratic states versus authoritarian states bipolarity which could render the international situation increasingly unstable and volatile.
Features
Chikungunya Fever in Children

Chikungunya fever, a viral disease transmitted by mosquitoes, poses a significant health concern, particularly for children. It has been around in Sri Lanka sporadically, but there are reports of an increasing occurrence of it in more recent times. While often associated with debilitating joint pain in adults, its manifestations in children can present unique challenges. Understanding the nuances of this disease is crucial for effective management and prevention.
Chikungunya fever is caused by the chikungunya virus (CHIKV), an alphavirus transmitted to humans through the bites of infected Aedes aegypti and Aedes albopictus mosquitoes. These are the same mosquitoes that transmit dengue and Zika viruses, highlighting the overlapping risks in many areas of the world. It is entirely possible for chikungunya and dengue to co-circulate in the same area, leading to co-infections in individuals.
When a mosquito bites a person infected with CHIKV, it ingests the virus. After a period of growth and multiplication of the virus within the mosquito, the virus can be transmitted to another person through subsequent bites. Therefore, the mosquito acts as a vector or an intermediate transmitting agent that spreads the disease, but not as a reservoir of the disease. The spread of chikungunya is influenced by environmental factors that support mosquito breeding, such as stagnant water and warm climates. Urbanization and poor sanitation can exacerbate the problem by creating breeding grounds for these mosquitoes.
The clinical presentation of chikungunya in children can vary, ranging from mild to severe. While some infected children may even be asymptomatic and be normal for all intents and purposes, others can experience a range of symptoms, including a sudden onset of high fever, a common initial symptom. Pain in the joints of the body, while being a hallmark of chikungunya in adults, may be less pronounced in children. However, they can still experience significant discomfort and this must be kept in mind during processes of diagnosis and treatment. It is also important to remember that joint pains can present in various forms, as well as in different locations of the body. There is no characteristic pattern or sites of involvement of joints. Muscle aches and pains can accompany the fever and joint pain as well. A headache, too, could occur at any stage of the disease. Other symptoms may include nausea, vomiting, and fatigue as well.
A reddish elevated rash, referred to in medical jargon as a maculopapular rash, is frequently observed in children, sometimes more so than in adults. While chikungunya is known to cause such a rash, there is a specific characteristic related to nasal discoloration that is worth noting. It is called the “Chik sign” or “Brownie nose” and refers to an increased darkening of the skin, particularly on the nose. This discolouration just appears and is not associated with pain or itching. It can occur during or after the fever, and it can be a helpful clinical sign, especially in areas with limited diagnostic resources. While a generalised rash is a common symptom of chikungunya, a distinctive darkening of the skin on the nose is a particular characteristic that has been observed.
In some rare instances, particularly in infants and very young children, chikungunya can lead to neurological complications, such as involvement of the brain, known as encephalitis. This is associated with a change in the level of alertness, drowsiness, convulsions and weakness of limbs. Equally rarely, some studies indicate that children can experience bleeding tendencies and haemorrhagic manifestations more often than adults.
Diagnosis is typically made through evaluating the patient’s symptoms and medical history, as well as by special blood tests that can detect the presence of CHIKV antibodies (IgM and IgG) or the virus itself through PCR testing.
There is no specific antiviral treatment for chikungunya. Treatment focuses on relieving symptoms and allowing the body to recover on its own. Adequate rest is essential for recovery, and maintaining hydration is crucial, especially in children with fever. Paracetamol in the correct dosage can be used to reduce fever and pain. It is important to avoid aspirin, as it can increase the risk of a further complication known as Reye’s syndrome in children. In severe cases, hospitalisation and supportive care may be necessary.
While most children recover from chikungunya without any major issues, some may experience long-term sequelae. Joint pain can persist for months or even years in some individuals, impacting their quality of life. In rare cases, chikungunya can lead to chronic arthritis. Children that have suffered from neurological complications can have long term effects.
The ultimate outcome or prognosis for chikungunya in children is generally favourable. Most children recover fully within a few days or a couple of weeks. However, the duration and severity of symptoms can vary quite significantly.
Prevention is key to controlling the spread of chikungunya. Mosquito control is of paramount importance. These include eliminating stagnant water sources where mosquitoes breed, using mosquito repellents, wearing long-sleeved clothing and pants, using mosquito nets, especially for young children and installing protective screens on windows and doors. While a chikungunya vaccine is available, its current use is mainly for adults, especially those traveling to at risk areas. More research is being conducted for child vaccinations.
Chikungunya outbreaks can strain healthcare systems and have significant economic consequences. Public health initiatives aimed at mosquito control and disease surveillance are crucial for preventing and managing outbreaks.
Key considerations for children are that some of them, especially infants and young children, are more vulnerable to severe chikungunya complications and early diagnosis and supportive care are essential for minimising the risk of long-term sequelae. Preventing mosquito bites is the most effective way to protect children from chikungunya. By understanding the causation, clinical features, treatment, and prevention of chikungunya, parents, caregivers, and healthcare professionals can work together to protect children from this illness that could sometimes be quite debilitating.
Dr B. J. C. Perera
MBBS(Cey), DCH(Cey), DCH(Eng), MD(Paed), MRCP(UK), FRCP(Edin), FRCP(Lond), FRCPCH(UK), FSLCPaed, FCCP, Hony. FRCPCH(UK), Hony. FCGP(SL)
Specialist Consultant Paediatrician and Honorary Senior Fellow, Postgraduate Institute of Medicine, University of Colombo, Sri Lanka.
Joint Editor, Sri Lanka Journal of Child Health and Section Editor, Ceylon Medical Journal
Founder President, Sri Lanka College of Paediatricians – 1996-97)
Features
The Great and Little Traditions and Sri Lankan Historiography

Power, Culture, and Historical Memory:
(Continued from yesterday)
Newton Gunasinghe, a pioneering Sri Lankan sociologist and Marxist scholar, made significant contributions to the study of culture and class in Sri Lanka by incorporating the concepts of great and little traditions within an innovative Marxist framework. His theoretical synthesis offered historians a fresh perspective for evaluating the diversity of past narratives.
At the same time, Michel Foucault’s philosophical intervention significantly influenced the study of historical knowledge. In particular, two of his key concepts have had a profound impact on the discipline of history:
1. The relationship between knowledge and power – Knowledge is not merely an objective truth but a manifestation of the power structures of its time.
2. The necessity of considering the ‘other’ in any conceptual construction – Every idea or framework takes shape in relation to its opposite, highlighting the duality inherent in all intellectual constructs.
These concepts challenged historians to rethink their approaches, prompting them to explore the dynamic interplay between knowledge, power, and culture. The existence of Little Tradition prompted historians to pay attention to ‘other’ histories.
The resurgence of ethnic identities and conflicts has brought renewed attention to the dichotomy of culture, steering the discourse in a new direction. The ethnic resurgence raises three key issues. First, the way non-dominant cultures interpret the past often differs from the narratives produced by dominant cultures, prompting the question: What is historical truth? Second, it underscores the importance of studying the histories of cultural identities through their own perspectives. Finally, and most importantly, it invites reflection on the relationship between ‘Little Traditions’ and the ‘Great Tradition’—how do these ‘other’ histories connect to broader historical narratives?
When the heuristic construct of the cultural dichotomy is applied to historical inquiry, its analytical scope expands far beyond the boundaries of social anthropology. In turn, it broadens the horizons of historical research, producing three main effects:
1. It introduces a new dimension to historical inquiry by bringing marginalised histories to the forefront. In doing so, it directs the attention of professional historians to areas that have traditionally remained outside their scope.
2. It encourages historians to seek new categories of historical sources and adopt more innovative approaches to classifying historical evidence.
3. It compels historians to examine the margins in order to gain a deeper understanding of the center.
The rise of a new theoretical school known as Subaltern Studies in the 1980s provided a significant impetus to the study of history from the perspective of marginalised and oppressed groups—those who have traditionally been excluded from dominant historical narratives and are not linked to power and authority. This movement sought to challenge the Eurocentric and elitist frameworks that had long shaped the study of history, particularly in the context of colonial and postcolonial societies. The writings of historians such as Ranajit Guha and Eric Stokes played a pioneering role in opening up this intellectual path. Guha, in particular, critiqued the way history had been written from the perspective of elites—whether colonial rulers or indigenous upper classes—arguing that such narratives ignored the agency and voices of subaltern groups, such as peasants, laborers, and tribal communities.
Building upon this foundation, several postcolonial scholars further developed the critical examination of power, knowledge, and representation. In her seminal essay Can the Subaltern Speak?, Gayatri Chakravorty Spivak questioned whether marginalized voices—especially those of subaltern women—could truly be represented within dominant intellectual and cultural frameworks, or whether they were inevitably silenced by hegemonic. Another major theorist in this field, Homi Bhabha, also focused on the relationship between knowledge and social power relations. His analysis of identity formation under colonialism revealed the complexities of power dynamics and how they persist in postcolonial societies.
Together, these scholars significantly reshaped historical and cultural studies by emphasising the voices and experiences of those previously ignored in dominant narratives. Their work continues to influence contemporary debates on history, identity, and the politics of knowledge production.
The Sri Lankan historiography from very beginning consists of two distinct yet interrelated traditions: the Great Tradition and the Little Traditions. These traditions reflect different perspectives, sources, and modes of historical transmission that have influenced the way Sri Lanka’s past has been recorded and understood. The Great Tradition refers to the formal, written historiography primarily associated with elite, religious, and state-sponsored chronicles. The origins of the Great Tradition of historiography directly linked to the introduction of Buddhism to the island by a mission sent by Emperor Asoka of the Maurya dynasty of India in the third century B.C. The most significant sources in this tradition include the Mahāvaṃsa, Dīpavaṃsa, Cūḷavaṃsa, and other Buddhist chronicles that were written in Pali and Sanskrit. These works, often compiled by Buddhist monks, emphasise the island’s connection to Buddhism, the role of kingship, and the concept of Sri Lanka as a sacred land linked to the Buddha’s teachings. The Great Tradition was influenced by royal patronage and aimed to legitimise rulers by presenting them as protectors of Buddhism and the Sinhala people.
In contrast, the Little Tradition represents oral histories, folk narratives, and local accounts that were passed down through generations in vernacular languages such as Sinhala and Tamil. These traditions include village folklore, ballads, temple stories, and regional histories that were not necessarily written down but played a crucial role in shaping collective memory. While the Great Tradition often portrays a centralised, Sinhala-Buddhist perspective, the Little Tradition captures the diverse experiences of various communities, including Tamils, Muslims.
What about the history of those who are either unrepresented or only marginally represented in the Great Tradition? They, too, have their own interpretations of the past, independent of dominant narratives. Migration from the four corners of the world did not cease after the 3rd century BC—so what about the cultural traditions that emerged from these movements? Can we reduce these collective memories solely to the Sokari Nadagams?
The Great Traditions often celebrate the history of the ruling or majority ethnic group. However, Little Traditions play a crucial role in preserving the historical memory and distinct identities of marginalised communities, such as the Vedda and Rodiya peoples. Beyond caste history, Little Traditions also reflect the provincial histories and historical memories of peripheral communities. Examples include the Wanni Rajawaliya and the Kurunegala Visthraya. The historical narratives presented in these sources do not always align with those of the Great Tradition.
The growth of caste histories is a key example of Little Historical Traditions. Jana Wansaya remains an important source in this context. After the 12th century, many non-Goigama castes in Sri Lanka preserved their own oral historical traditions, which were later documented in written form. These caste-based histories are significant because they provide a localised, community-centered perspective on historical developments. Unlike the dominant narratives found in the Great Tradition, they capture the social, economic, and cultural transformations experienced by different caste groups. For instance, the Karava, Salagama, and Durava castes have distinct historical narratives that have been passed down through generations.
Ananda S. Kulasuriya traced this historical tradition back to the formal establishment of Buddhism, noting that it continued even after the decline of the Polonnaruwa Kingdom. He identified these records as “minor chronicles” and classified them into three categories: histories of the Sangha and Sasana, religious writings of historical interest, and secular historical works. According to him, the first category includes the Pujavaliya, the Katikavatas, the Nikaya Sangrahaya, and the Sangha Sarana. The second category comprises the Thupavamsa, Bodhi Vamsa, Anagatha Vamsa, Dalada Sirita, and Dhatu Vamsa, along with the two Sinhalese versions of the Pali Hatthavanagalla Vihara Vamsa, namely the Ehu Attanagalu Vamsa and the Saddharma Ratnakaraya. The third category consists of works that focus more on secular events than religious developments, primarily the Rajavaliya. Additionally, this category includes the Raja Ratnakaraya and several minor works such as the Sulu Rajavaliya, Vanni Rajavaliya, Alakesvara Yuddhaya, Sri Lanka Kadaim Pota, Kurunegala Vistaraya, Buddharajavaliya, Bamba Uppattiya, Sulu Pujavaliya, Matale Kadaim Pota, Kula Nitiya, and Janavamsaya (Kulasuriya, 1978:5). Except for a few mentioned in the third category, all other works are products of the Great Historical tradition.
Over the last few decades, Gananath Obeyesekera has traversed the four corners of Sri Lanka, recovering works of the Little Historical Traditions and making them accessible for historical inquiry, offering a new lens through which to reread Sri Lankan history. Obeyesekera’s efforts to recover the Little Historical Traditions remind us that history is never monolithic; rather, it is a contested space where power, culture, and memory continuously shape our understanding of the past. By bringing the Little Historical Traditions into the fold of Sri Lankan historiography, Obeyesekera challenges us to move beyond dominant narratives and embrace a more pluralistic understanding of the past. The recovery of these traditions is not just an act of historical inquiry but a reminder that power shapes what we remember—and what we forget. Sri Lankan history, like all histories, is a dialogue between great and little traditions and it is to engage both of them. His latest work, The Doomed King: A Requiem for Sri Vikrama Rajasinghe, is a true testament to his re-reading of Sri Lankan history.
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