Monju Begum, 40, married and a mother of three children, says her neighbour Mozammel Haq Mazi had been harassing her for the past six months in Mirzapur village, Jhalakathi, about 200km (124 miles) south of the capital, Dhaka. Mazi forced his way into her shanty and started assaulting her. Police say she cut off his penis during this alleged attempt to rape her and she took it to the police station as evidence.
Mr Mazi, who denies the accusation, has been admitted to Sher-e-Bangla Medical College and Hospital in Barisal town.
“We will arrest him once his condition gets better,” police spokesman Abul Khaer told the BBC.
“She said she fought back and cut off his penis and brought it to our police station in a polythene bag to prove that Mr Mazi tried to rape her,” said Khaer.
“She has registered a case accusing him of attempted rape,” he said.
“It is quite an unusual incident. As far as I am aware, this is the first time that a woman has brought a severed penis to the police station as evidence.”
Mr. Mazi, who denies the allegations, states “we were having an affair and recently she suggested that both of us can go and settle down in Dhaka.”
“I refused and told her that I cannot leave my wife and children, so she took revenge on me.”
Prof AMSM Sharfuzzaman, a senior surgeon at the hospital told the BBC it had not been possible to reattach his penis. “Police brought his severed penis several hours after the incident,” he said. “We are treating him so that he can urinate normally without the penis.”