India, Feb. 18 -- The Tamil Nadu police have arrested seven students of two colleges for gang-raping a 17-year-old girl in Coimbatore after acquainting with her through social media platforms, officials said on Tuesday.

Police said that one of the boys befriended the girl over social media and invited her to his rented home in Kuniyamuthur, where he and his six friends gang-raped her.

Police started the investigation after the girl's grandmother filed a missing person report at the Ukkadam police station on Sunday. The girl returned on Monday morning. When questioned by the police, she disclosed her ordeal.

Police lodged a case under the Protection of Children from Sexual Offences (POCSO) Act. On Tuesday, all seven students were arrest...