India, April 6 -- The police on Thursday arrested a 29-year-old man from Badlapur East for allegedly raping a 13-year-old girl from Bihar who is being treated for cancer in Mumbai.

The incident came to light when doctors treating the girl at Mumbai's Kasturba Hospital discovered that she was two months pregnant, after which the hospital authorities immediately alerted the police, said senior police inspector Kiran Balwatkar from the Badlapur East police station.

According to the police, the sexual assault took place at the accused's home in Badlapur East, where the survivor and her mother were staying during her chemotherapy sessions.

The accused hails from the same village in Bihar as the survivor's family and had gained their trust u...