Police said Sanjeevi (18), a catering worker in Chennai and son of Krishnan of Chinna Mottur village near Vaniyambadi, was involved in agricultural work in the field of Rajendran of the same village. As the driver went for lunch after switching off the tractor, Sanjeevi took a selfie sitting on the driver’s seat and posted it on Facebook. He then started the vehicle and inadvertently shifted to the reverse gear. The vehicle along with Sanjeevi moved and fell into the 60-foot well in the farm.