Two children suffocated to death after the television set in their room overheated and smoke from the melting plastic filled the room, police said on Saturday. The incident occurred on Friday night in Khoda residential colony bordering Delhi, when the boys, lucky (4) and Ishu (2), were watching television. The mother, a vegetable vendor and father, a mechanic returned home late to find the room filled with dense smoke. The room did not have any ventilator, and the children became unconscious while asleep. The parents found their children lying unconscious on the floor and rushed them to lal Bahadur Shastri Hospital where the doctors pronounced them dead on arrival. The bodies were taken for autopsy and later handed over to the family for cremation, police said.