Several heritage sites in and outside Kathmandu are under threat due to growing number of monkey population, a study has said.

The conclusion was drawn based on a study carried out at Pashupati, Swayambhu, Patan Durbar, Sankhu Bajrayogini, Gokarneswor Mahadev and Nilbarahi in Kathmandu, Badimalika in Bajura, Barahachhetra in Sunsari, and Ramdi in Pyuthan.

Simian population in these heritage sites is on the brink of or past their peak. But the authorities concerned have remained apathetic towards the situation.

Ram Bahadur Kunwar, spokesperson of Department of Archaeology, which is the nodal agency for conservation of heritage sits, stressed the need to explore measures for protecting heritages from monkey menace.