It is believed that this situation had arisen to due earlier attempts made in 1962 to apply tar on them and destroy the ancient paintings.
Prior to this instance, these frescos had been affected by fungus and it was curtailed using a chemical substance.
Due to the current resurfacing of the fungus, chemical treatment has commenced again.
The Central Environmental Authority claims that this fungal infection could be cleared by next week.
When contacted, the Director General of the Central Environmental Fund Prof. Chrishantha Gunawardena said the fungal infection was mainly on the mirror walls.
He noted that this was due to environmental changes.