New Delhi, Oct. 10 -- A 17-year-old boy died by suicide at his female classmate's house in Faridabad's Shiv Shakti Enclave on Thursday night, with police suspecting a one-sided love affair as the motive, officials said on Saturday.

The incident triggered violence at the girl's house, leaving two policemen injured and leading to the arrest of at least nine of the boy's family members on charges including attempted murder, robbery and rioting.

Investigators said that the girl, her four-year-old brother and her septuagenarian grandmother were at home when the boy reached their house on Thursday night, despite his previous assurance to his parents and school authorities that he would not follow or harass her or go anywhere near her residenc...