A 22-year-old man allegedly committed suicide after being blackmailed over an objectionable video, a Pune police official said on Monday.

The man had hanged himself in his house in Dhanakwadi area recently and a probe revealed a fraudster had threatened to upload a nude video of his and had also extorted money, the official said.

"The victim was conversing with this fraudster, who had posed as woman. He made a video and then sought money from the victim. He was forced to send Rs 4,500 though a payment app on several occasions," the Sahakarnagar police station official said.

A case under Indian Penal Code and Information Technology Act provisions has been registered against an unknown person and efforts were on to nab him, he added.