Features
Restoration of Sigiriya frescoes vandalized in 1967
Excerpted from SIGIRIYA PAINTINGS by
Raja de Silva , Retired Commissioner of Archaeology
On the morning of October 15, 1967, the Archaeology Commissionner, Dr. CE Godakumbure, instructed me to go immediately to Sigiriya and take necessary action to remove the green ink (S. theentha), which, according to an incoherent message received from the Overseer, was understood to have been splashed on the paintings in the fresco pocket by vandals during the previous night.
I arrived that evening at Sigiriya with my conservation staff and the onset of the rainy season of the North-East Monsoon, and with liberal quantities of chemicals for the removal of ink. I was informed that the priceless paintings had been daubed not with ink but with a green paint. The paintings were inspected the next morning in the company of the Police, who had locked with a new padlock, the door leading to the fresco pockets at the head of the spiral staircase, after their investigations the previous day. It appeared from the police investigations that the vandals had surmounted two locked gates and opened the final padlocked door of the fresco pocket with a key.
The greatest problems of conservation and restoration that were faced at Sigiriya were those attendant on the vandalism that took place in October, 1967 when a commercial green paint was daubed on 14 of the 19 paintings extant in the fresco pockets (five in pocket A and 14 in pocket B). 12(a). In addition two of the disfigured paintings had been physically damaged beyond repair, by hacking away the head of one figure (pocket B, No. 3) and the portion above the waist of the next (pocket B. No. 4). 7(a), 10, 10(a). The very next painting (pocket B, No.5) was stabbed at with a pointed instrument – “the most unkindest cut of all”.
The paintings in pocket A which had been covered by the daubing of green paint were Nos. 3 and 4; the panels in pocket B which had been similarly disfigured were Nos. 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 and 13. Broken fragments of the painted plaster were strewn on the floor of pocket B and the paint had trickled on to the lower parts of the ground and the floor of the other pocket as well. Much of the paint had not dried and the cool weather due to the monsoonal rains had inhibited the drying process. No test for the removal of the paint were possible as the chemicals brought from Colombo were for the purpose of removing ink stains, misconstrued as the material strewn on the paintings (the Sinhalese word for ink being the same as that for paint). A full photographic record in black and white and in colour was taken together with samples of the paint and the broken plaster, and conservation team returned to Colombo on 16 October.
No time was lost in conducting experiments for the expeditious removal of dry and drying paint from the fragments of the Sigiriya plaster (without damage to the original painted surface) and from similar wall surfaces in the laboratory. The keystone of the tests was to devise a method of dissolving the paint and removing it from the surface of the wall before the dissolved paint solution had time to penetrate into the lime plaster (intonaco). A suitable method of treatment was successfully devised in Colombo, and the conservation party left for Sigiriya on October 19.
On October 20, a successful method of cleaning the greater part of the vandals’ paint was devised in the fresco pockets and by end of the day about half the area of pocket B, No. 10 was cleaned. In patches where the original paint layer had fallen off in the past revealing the intonaco, there was a light blue colour due to the constituent of the paint of this colour; which turned out to be Prussian Blue, being absorbed in such areas. On returning to Colombo on October 21 a conference was held the next day chaired by the Minister of Education and Cultural Affairs; in immediate response to a Government request from the International Centre for the Study and Preservation of Cultural Property, Rome, for the services of the best available expert to restore the paintings, Luciano Maranzi, an alumnus of this Centre was selected and had arrived in the Island for a period of two weeks.
The Smithsonian Institution, Washington, had readily agreed to bear the expenses involved. After briefing the Minister and discussing the problems involved whilst in Colombo, Maranzi, Raja de Silva and his technical staff left for Sigiriya the next day with materials for restoration from the Archaeological Laboratory as well as from Italy. Maranzi conducted experiments for two days and devised a quicker method of cleaning the paintings than had been used a few days earlier by de Silva, with the use of the same solvent, trilene. Maranzi expressed no great surprise at this coincidence as he recalled seeing me at the Rome Centre in 1956 when I was on a short training course there.
Maranzi, however, used to good effect other materials too that had been brought by him, and adopted a faster and more efficient method of cleaning the paintings than we had used. Maranzi and the Archaelogical Survey Department (ASD) staff worked in the fresco pockets from early morning till fading light of the evening (food being brought up daily) until November 3, 1967; he left the Island on November 4 after completing the initial part of his programme of work and advising us on how to continue the restoration work pending his return in 1968.
The programme of restoration and conservation was phased out as follows:
1
. Removal of the yellow and green constituents of the vandals’ paint
In this process, the modern restorations carried out by the ASD were also largely removed, the exception being the resistant green paint, easily recognizable as not original from slight impasto nature, that may have been done by the “lasting spirit fresco medium” recorded by Bell.
The method adopted by Maranzi was the application of Decapex (Nitrosmalti, Via Quattro Novembre, Roma) a jelly like proprietary brand of mild paint remover. A small pad of cotton wool was then dipped in trilene, firmly held with the fingers and thumb and drawn across the painted area already treated with Decapex. By repetition of this procedure, the green and yellow constituents of the vandals’ paint were removed. On conducting this part of the cleaning operation, it was found that in certain areas where the original paint had fallen off in the past (and the intonaco had been exposed) the blue constituent of the vandals’ paint had been absorbed on the intonaco, and was resistant to the paint remover. However, dark growths of algae around some of the panels as well as most of the restorations of the ASD were removed.
2. Consolidation of the plaster of the physically damaged figures
An emulsion of polyvinyl acetate, Vinamul (ICI, London), known locally as Chemifix, further diluted with water was introduced using a hypodermic syringe and needle at the broken edge formed by the destruction of parts of B3 and B4. The exposed rock surface (seen to be pitted all over as a “key” for the laying of the ground) resulting from the vandalism on panels B3 and B4 was plastered with a mixture of sand, lime and polyvinyl acetate emulsion. Before the work was completed on B5, a memento in the form of two coins of the day engraved with the names of Maranzi and de Silva and dated March 25, 1967, were inserted in the fresh plaster mix at the edge of the broken ground of the wall painting, to be found at some distant date when the applied plaster is removed or falls away.
3. Removal of the resistant Prussian Blue
This constituent of the vandals’ paint can be decolorized by the use of alkalies. The application of inorganic alkalies such as even very dilute sodium hydroxide can lead to complications later due to the conversion of any excess into sodium carbonate. The Rome Centre advised the use of a volatile organic base, normal butyl amine, which was found to be satisfactory for our purpose. The application of the amine entailed the use of a cotton-wool padded glass rod.
4. Restoration by Maranzi of the areas exposed by the removal of modern restoration work by the ASD.
The “many lamentable pitting” on the paintings found by Bell had been modeled in and touched up in his time by using modern colours that extended beyond the repaired areas. The white frame left on the removal of Murray’s tissue papers had been restored using colours that did not blend well with the background colour laid on the plaster in ancient times. All these having been removed in the cleaning process of 1967, Maranzi did the minimum amount of restoration necessary, using emulsion paints (Reeves polymer colours) and Aqua Tee acrylic polymer emulsions (Bocour Artists, Colombo, New York). This work was done in an acceptable manner. so as to enable the viewer to recognize which areas had been restored. SM Seneviratne, Draughtsman and MWE Karunaratne, Photographer, assisted Maranzi in this part of the programme.
5. Application of a Preservative Coating
The painstaking and unstinted assistance given by SM Seneviratne, MWE Karunaratne, and RA Wilson, WK Samaranayake and Lokubanda of the Archaeological Laboratory, is placed on record.
Maranzi returned to the country on March 4. 1968 to personally undertake the remaining phases of the restoration work, i.e., touching up, and the application of a preservative coating of an easily removable synthetic resin, Paraloid B72, dissolved in trilene. This served also to enhance the clarity of the paintings. Maranzi copied (from existing photographs) in the fresco technique, the damaged panels B3 and B4, on an asbestos sheet plastered with a lime mix – the only example of a fresco painting in the country, which is exhibited in the archaeological museum, Sigiriya. He left Sri Lanka on April 11, 1968. It may be noted here that we were able to obtain Maranzi’s services on several later occasions, when he trained our conservation staff, and restored our paintings elsewhere in the country.
Maranzi had come, revivified the divine females of the fresco pocket to their pristine beauty, and had departed, leaving these specimens of ancient pictorial art for present and future generations to delight in. The entire nation and lovers of art outside our shores are surely indebted to him for the excellence of his restoration work.
On May 8, 1968, the fresco pocket was ceremonially opened to the public by the Minister of Education and Cultural Affairs in the presence of a distinguished gathering and thousands of citizens, after a historic meeting held at the Audience Hall Rock.
Features
Putting people back into ‘development’ – a challenge for South
Should Sri Lanka consider an 18th IMF programme? Some academicians exploring Sri Lanka’s development prospects in depth are raising this issue. It is yet to emerge as a hot topic among policy and decision-making circles in this country but common sense would sooner rather than later dictate that it be taken up for discussion by the wider public and a decision arrived at.
The issue of an 18th IMF programme was raised with some urgency locally by none other than Dr. Ganeshan Wignaraja,Visiting Senior Fellow, ODI Global London, one of whose presentations, made at the Regional Centre for Strategic Studies (RCSS), Colombo, was highlighted in this column last week, May 7th. An IMF programme is far from the ideal way out for a bankrupt country such as Sri Lanka but a policy of economic pragmatism would indicate that there is no other way out for Sri Lanka. Such a programme is the proverbial ‘Bird in the hand’ for Sri Lanka and it may be compelled to avail of it to get itself out of the morass of economic failures it is bogged down in currently.
While local economic growth possibilities are far from encouraging at present, such prospects globally are far from bright as well. Some of the more thought-provoking data in the latter regard were disclosed by Dr. Wignaraja. For example, ‘The IMF’s April 2026 World Economic Outlook projects global growth slowing to 3.1 percent in 2026; with downside risks dominating: prolonged conflict, geopolitical fragmentation, renewed trade tensions, bearing down hardest on emergent and developing economies.’
However, as is known, an ‘IMF bailout’ is fraught with huge risks for the people of a developing country. ‘The Silver Bullet’ brings hardships for the people usually and they would be required by their governments to increasingly ‘tighten their belts’ and brace for perhaps indefinite material hardships and discontent. For Sri Lanka, the cost of living is unsettlingly high and 20 percent of the population is languishing below the poverty line of $ 3.65 per day.
These statistics should help put the spotlight on the people of a country, who are theoretically the subjects and beneficiaries of development, and one of the main reasons, in so far as democracies are concerned, for the existence of governments. Placing people at the centre of the development process is urgently needed in the global South and shifting the focus to other considerations would be tantamount to governments dabbling in misplaced priorities.
Technocrats are needed for the propelling of economic growth but a Southern country’s main approach to development cannot be entirely technocratic in nature. The well being of the people and how it is affected by such growth strategies need to be prime focuses in discussions on development. Accordingly, discourses on how poverty alleviation could be facilitated need urgent initiation and perpetuation. There is no getting away from people’s empowerment.
In the South over the decades, the above themes have been, more or less, allowed to lapse in discussions on development. With economic liberalization and ‘market economics’ being allowed to eclipse development, correctly understood, people’s well being could be said to have been downplayed by Southern governments.
The development issues of Southern publics could be also said to have been compounded over the years as a result of the hemisphere lacking a single and effective ‘voice’ that could consistently and forcefully take up its questions with the global powers and institutions that matter. That is, the South lacks an all-embracing, umbrella organization that could bring together and muster the collective will of the South and work towards the realization of its best interests.
This columnist has time and again brought up the need for concerned Southern sections to explore the potential within the now virtually moribund Non-Aligned Movement to reactivate itself and fill the above lacuna in the South’s organizational and mobilization capability. In its heyday NAM not only possessed this institutional capability but had ample ‘voice power’ in the form of its founding fathers, with Jawaharlal Nehru of India, for example, proving a power to reckon with in this regard. The lack of such leaders at present needs to be factored in as well as accounting for the South’s lack of power and presence in the deliberative forums of the world that have a bearing on the hemisphere’s well being.
The Executive Director of the RCSS, Ambassador (Retd) Ravinatha Aryasinha, articulated some interesting thoughts on the above and related questions at a forum a couple of months back. Speaking at the launching of the book authored by Prof. Gamini Keerewella titled, ‘Reimagining International Relations from a Global South Perspective’, at the Bandaranaike Centre for International Studies, Colombo, Amb. Aryasinha said, among other things: ‘Historically, there is a precedent that has been realized by the Non-Aligned group of countries – unfortunately, rather than being reformed and modified at the end of the Cold War, it has been tossed away.’
The inability of the nominally existent NAM to come out of its state of veritable paralysis and voice and act in the name of the South in the current international crises lends credence to the view that the organization has allowed itself to be ‘tossed away.’ The challenge before NAM is to prove that it is by no means a spent force.
As indicted, NAM needs vibrant voices that could advocate value-based advancement for the global South. Moral principles need to triumph over Realpolitik. Such transformative changes could come to pass if there is a fresh meeting of enlightened minds within the South. Pakistan by offering to mediate in the ongoing conflict between the US and Iran, for instance, proved that there are still states within the South that could look beyond narrow self-interest and work towards some collective goals. Hopefully, Pakistan’s example will be emulated.
Along with Pakistan some Gulf states have shown willingness to work towards a de-escalation of the present hostilities in West Asia. This could be a beginning for the undertaking of more ambitious, collective projects by the South that have as their goals political solutions to current international crises. These developments prove that the South is not bereft of visionary thinking that could lay the basis for a measure of world peace. That is, there are grounds to be hopeful.
NAM needs to see it as its responsibility to make good use of these hopeful signs to bring the South together once again and work towards the realization of its founding principles, such as initiating value-based international politics and laying the basis for the collective economic betterment of Southern people.
Features
Artificial Intelligence in Academia: Menace or Tool?
(The author is on X as @sasmester)
I have often been told by university colleagues how soulless and dangerous ‘artificial intelligence’ (AI) is to academia and humanity. They lament that students no longer read anything as they can now get various AI programmes to summarise what is recommended which is mostly in the English language to Sinhala or Tamil or get easier versions in English itself. They get their assignments and even dissertations fully or partially written by AI. And I am led to believe that universities do not have reliable detection software to assess plagiarism and academic fraud that have been committed using AI beyond the software freely available on the internet with their own limitations. This is due to financial restrictions in these institutions. Even these common malpractices have been done mostly with the aid of free AI programmes which are readily available, which means cheating in this sense is free and mostly safe. For teachers, this is a ‘menace’ in the same way ‘copying’ once was. But its implications are far worse.
But given the global investments made over AI, it cannot be wished away despite the enormous negative impact its use has on the environment, particularly due to its massive demand for energy. So, AI is with us to stay, and it has a considerable role to play in human civilisation even though like most innovations and inventions, this too carries its own burden of negativity. In this context, instead of demonising AI and lamenting its replacement of human agency and ingenuity, one needs to think seriously about how to deal with and engage with it reflectively and pragmatically as there is much it can offer if people are intelligent enough to make rational and sensible choices.
When I am making these observations, I am restricting myself to a handful of practices involving only writing both in university-based examination processes and in the fields of creative writing.
My initial introduction to AI was through the Research Methods class I used to teach in New Delhi. In 2022, this class was supposed to go to Dharmshala in Uttar Pradesh for fieldwork training, and we needed to write a funding proposal quickly. One of the students in the class, already familiar with ChatGPT introduced by OpenAI as a free programme in 2022, did the proposal with its help before the two-hour class was over. I edited it soon after and sent it off to the university administration for funding which we received. That stint of field work was completed in five days and was the most detailed work undertaken as a training programme up to that time in the university which had considerable output ranging from a documentary film to a detailed ethnography based on the findings.
While the technical details, the format of the proposal and its basic writing were done by AI due to the time constraints the class faced, its fine-tuning was done by me and a few students. AI could not then and even now cannot undertake that level of specificity without close human intervention. But the film, the ethnography and the actual process of research had nothing to do with AI. It was the result of human labour, thinking, planning and at times creativity and ingenuity. This was an early example of how AI could coexist in an academic environment if its technical usefulness was clearly understood and potential for excesses was also understood. But this was a time, easily accessible AI was just emerging, and we did not know much about it. But I was fortunate enough to have intelligent students in my class who gave me a crash course into this kind of AI use, which I followed up with my own reading and experimentation later on. As a result, I am keener now to see how it can be used for the betterment of academic practice rather than taking an uncritically demonising position, which I know will not lead anywhere.
But how is this possible? The lamentations of my colleagues about the abuse of AI in academic practice is not unfounded. It is a serious threat that remains mostly unaddressed not only in our country but almost everywhere else in the world too. This is mostly because the advancements of AI even in day-to-day free usage have far exceeded any thoughts for actionable codes of ethics to ensure its practice is sensible and ethical. At the same time, I cannot see why a student should not use AI to correct his spelling and grammar in assignments. I also cannot see why a student cannot seek AI’s help to secure research material from secondary sources available online which I have been doing for years. For instance, the originals of specific books and rare manuscripts might not be available in any repositories in our part of the world. In such situations, what AI might find us is all we have access to in a world where we are restricted in our mobility due to semi-racist visa regimes of failed empires and former superpowers as well as our own lack of ability to travel due to our own unenviable economic conditions. But unfortunately, the materials we need are often only available in research centers and libraries in those nations.
Similarly, when it comes to academic prose, it makes no sense now to take years to translate works from multiple languages to Sinhala and Tamil. This has always been a time-consuming, cumbersome and expensive process. Non-availability of Sinhala and English translations of core originals in languages such as English, French, German and so on has been a long-term problem for our country. But this can now be done well – at least from English to our languages – quite quickly and with a very low margin for error by using specific AI programmes which are meant to do precisely this. What this means is a quick expansion of knowledge in local languages which would have ordinarily taken years to achieve or might not have been possible at all. But still, this needs significant human intervention and time towards perfection. However, I do not think AI-based translations work as well for fiction and poetry or creative works more generally. But the ability for AI to emulate nuance and feeling in language is fast emerging. These are two clear examples of improving technical abilities in research and writing in which AI can be of help.
But looking for sources of information with help the help of AI or using it as a tool to undertake essential translations from one language to another is quite different from simply using it without ascertaining the accuracy of collected information, getting AI to do all your work without any reflection or without any hard work at all, including engaging AI to do the final product in a writing assignment — be that a term paper or a work of fiction. If one proceeds in this direction, as many unfortunately do nowadays, then, our ability to think and be creative as a species will become diminished over time and our sense of humanity itself will take a toll. This is what my colleagues worry about when they say AI is making younger generations soulless.
It is here that ethical practices on how to use AI responsibly without compromising our sense of humanity must play a central role. But these ethical practices must be formally written and taught, followed by viable programmes for detection and publication if unethical practices are followed. This needs to be the case particularly in teaching institutions as well as the broader domain of creative writing. After all, what is the fun in reading a novel or a collection of poetry written by AI?
It is time people began to think about what AI can do in their own fields without falling prey to its power and their own laziness. This brings to my mind Geoffrey Hinton’s words: “There is no chance of stopping AI’s development. But we need to ensure alignment; to ensure it is beneficial to us …” Similarly, as Yann LeCun observed, “AI is not just about replicating human intelligence; it’s about creating intelligent systems that can surpass human limitations.” In this sense, it is up to us to find our edge in creativity and common sense to find the most sensible way forward in using AI.
Features
Engelbert’s 90th birthday bash
The legendary Engelbert Humperdinck, who is known for his hit songs such as ‘A Man Without Love’, ‘Release Me’, ‘Spanish Eyes’, ‘The Last Waltz’, ‘Am I That Easy To Forget’, ‘Ten Guitars’ and ‘I Can’t Stop Loving You’, turned 90 on 02 May, 2026, and there were some lovely Hollywood-related celebrations.
Before his birthday, Engelbert’s new single ‘I’ve Got You’ was released – on 23 April – and Engelbert had this to say: “‘I’ve Got You’ is especially close to my heart. It speaks to love, loyalty, and the quiet strength we find in one another”.
The main birthday event was held at The Starlight Cabaret, in Los Angeles, California, and Sri Lankan Raju Rasiah, now based in the States, and his wife Renuka, who are personal friends of Engelbert, were invited to participate in the celebrations, along with Ingrid Melicon – also a Sri Lankan, now domiciled in America.
The invitation said “An evening of music, memories and celebration. Let’s make it a night to remember!” And it certainly turned out to be a night never ever to be forgotten!

Invitees experienced a “magical entrance” with Engelbert’s name lighting up the screen and showing him performing his hit songs.
The invitees were also presented with a unique gift – a necklace with Engelbert’s face, engraved with the words “Remember, I Love You.”
Engelbert’s son, Bradley Dorsey, sang a tribute song ‘Only You’ for his dad, while Eddy Fisher’s daughters, Tricia and Joely, also got on stage to entertaining the distinguish gathering.
Engelbert didn’t perform but got on stage for the cutting of the birthday cake.
There was also a video compilation of birthday wishes from fellow celebrities, and the lineup included Gloria Gaynor, Micky Dolenz, Wayne Newton, Pat Boone, Lulu, Judy Collins, Deana Martin, Angélica María, Rupert Everett, Matt Goss, and more.

Birthday boy Engelbert Humperdinck
At 90, Engelbert is still performing. He’s on THE CELEBRATION TOUR for his 90th year, with over 50 international dates in 2026, including Australia, Germany, the US, and Canada. He’ll be at Massey Hall in, Toronto, on 06 October, 2026. He said: “The stage is my home… Canada has always been a highlight”.
He performed 60+ concerts, worldwide, in 2025, and says karaoke keeps his songs fresh: “Most of my songs are on karaoke because people love to sing them”.
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