Contractor charging Rs 1.2 lakh for waterproofing of tiled roof in panaji

In panaji, many houses are having tiled roofs to give them a goan look.
These roofs have a concrete top and the tiles are placed on the roof.
A house near the mailing address was undergoing renovatio
The contractor said that he had quoted Rs 1.2 lakh for waterproofing the tiled roof of a two bedroom flat
Initially some work was done, the tiles are removed and the workers have disappeared after the lockdown