Rishi Pal (36), his wife, Atar Kali (32) and their 13-year-old son Yogesh died on the spot, while one Tota Ram was seriously injured when their tractor fell into a roadside ditch and overturned yesterday, Hari Singh, Dhanari station Incharge said.
Ram was admitted to a hospital, Singh said, adding that bodies have been sent for postmortem.