Police on Friday night arrested a 50-year-old man on charge of raping his stepdaughter, aged 15, the same evening in Mozidpur area of Savar.
A team of police from Savar Model Police Station apprehended Jahangir Alam after his day labourer wife, who is mother of the girl, told police that he raped her daughter in their room on Friday evening when she was out for work, said police quoting the girl and her mother.
The girl disclosed the incident to her mother after she returned home that night, they also said.
AFM Sayeed, officer-in-charge of Savar Model Police Station, said the girl was sent to One-stop Crisis Centre of Dhaka Medical College Hospital for medical tests yesterday.
The girl's mother filed a case against Jahangir yesterday, the OC added.