The body of the girl, who was missing since yesterday was found stuffed in a gunny bag in Dhangaslole village today, they said.
After the body was found, the girl's father lodged a complaint at Salboni police station alleging that his daughter was raped and killed by Bapaditya Mahato (32) who used to harass her.
Bapaditya, who is a cousin of the girl is absconding since yesterday, police said, adding a search operation has been launched to nab him.
Meanwhile, the post-mortem was conducted on the body after which it was handed over to the family.