New Delhi, April 14 -- The principal of Delhi University's Laxmibai College has been caught on video coating the walls of a classroom with cow dung.

The Principal Pratyush Vatsala told PTI that the act was part of an ongoing research being undertaken by a faculty member.

She said the project is named Study of Heat Stress Control by Using Traditional Indian Knowledge.

"It is under process. I will be able to share details of the full research after a week. The research is being carried out in porta cabins. I coated one of them myself because there's no harm in touching natural mud. Some people are spreading misinformation without knowing the full details," she said.

In the video, Vatsala is seen applying cow dung on the walls with the h...