Water saturation in soil, construction on drains, seepage and overburdening of hills are some of the reasons that experts have contributed to the collapse of buildings in Shimla. Himachal Pradesh received 752.1 mm of rainfall since the onset of Monsoon on June 24 till date against average rainfall of 730 mm during the whole Monsoon season from June to September, according to the Met department.
Overburdening of hills with construction coupled with saturation of soil and seepage seem to be responsible for landslides in Shimla city, said Principal Scientific Officer, Himachal Pradesh Council for Science Technology and Environment (HIMCOSTE) S S Randhawa.