A woman in Thane district of Maharashtra allegedly cut off the penis of a 27-year-old man with the help of two others as he was harassing her.
The incident took place at Nandivali in Manpada area late on Tuesday, the police said.
The victim and the 42-year-old woman lived in the same locality, he said, without disclosing their identities.
The victim was allegedly making unwanted advances towards the woman and stalking her for the past few weeks, she told the police.
A few days ago, the victim told the woman's husband that he liked her, which led to a quarrel between the couple, the officer said.
The woman then decided to teach the victim a lesson and sought the help of Tejas Mhatre (22) and Pravin Kenia (25).
She called the victim to a deserted spot Tuesday night and when he reached there, Mhatre and Kenia allegedly thrashed him and the woman cut off his penis, a police officer said.
The victim, grievously injured, was taken by some people to a hospital in Dombivali where he underwent surgery and was now stable, said the officer.
On his complaint, the police arrested the woman along with Mhatre and Kenia. All three were sent in police custody for four days on by a local court, he said.