Chennai, Dec. 30 -- Four 17-year-old boys have been produced before the Juvenile Justice Board in Tamil Nadu for allegedly attacking a migrant worker with a sickle and posting videos of the assault on social media. Police said the teenagers, who were reportedly intoxicated, attacked the victim after an argument on a suburban train between Chennai and Tiruttani in Tiruvallur district.

The incident occurred on the evening of December 26. A video clip showing the group repeatedly assaulting the victim was uploaded on Instagram and has since circulated widely on social media. Police identified the victim as Suraj, a 34-year-old worker from Kolhapur district in Maharashtra .

According to police, the boys boarded the train at Thiruvalangadu r...