Two research students of IIT-Roorkee and a foreign scholar have accused at least five professors of the institute of sexual harassment, police said on Wednesday.
The women approached the Haridwar police in the past 10 days, Haridwar SSP Ridhim Agarwal said.
Two complaints were received on email and phone while one researcher filed a formal complaint with the police last week, the SSP said.
The foreign scholar has alleged that she was sexually harassed by the professors in 2015 when she had visited the institute to deliver a lecture.
"As we do not have the number of the foreign scholar, we have sent her an email asking her to provide more details to enable us to investigate the matter. Another complainant who approached us through a telephonic message on last Sunday has not come forward to file a formal complaint yet," the SSP said.
However, one of the researchers who had filed a formal complaint with the police last week told media that her supervisor at the institute harassed her sexually and mentally.
She said when she approached the institute's top authorities, they only replaced the supervisor with another professor, who she alleged has reputation of harassing women.
"My supervisor harassed me sexually and mentally over the past two years besides using caste slurs against me. I complained to the director and dean but they forwarded it to the women's cell.
"The head of the women's cell said the supervisor will be changed but no action can be taken against him," the researcher told reporters.
A three-member SIT has been formed to probe the matter, the SSP said.
A statement from the IIT-Roorkee on the foreign scholar who has levelled allegations of sexual harassment against the professors said an inquiry by the Internal Complaints Committee concluded that the complaint does not constitute any gender-based discrimination and harassment.
On the complaint filed by a research scholar of the institute, it said the matter is being looked into.
Get Breaking news, live coverage, and Latest News from India and around the world on NDTV.com. Catch all the Live TV action on NDTV 24x7 and NDTV India. Like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.