India, Sept. 28 -- A 15-year-old Class 10 student died after he was allegedly assaulted by at least seven minor boys in Mangolpuri, northwest Delhi, on Friday evening over personal enmity, police said.

Deputy commissioner of police (Outer) Sachin Sharma said that no weapons were used in the crime and there were no visible injury marks on the body of the deceased. "We are waiting for the autopsy report to ascertain the exact cause of death. The teenager had an altercation with the other group of boys a couple of days ago. On Friday afternoon, the teenager beat someone from that group. In the evening, the other group took revenge and assaulted him, due to which he became unconscious and died," said Sharma.

Police said some of the boys inv...