Three persons were killed in a road accident that took place at Antaram village in Kowdipally mandal on Tuesday. According to sources, ETV 2 event manager Ramesh Babu (45), a tractor firm manager Reshma Ramachandran (25) and driver R.C. Reddy (25) were killed on the spot when the car they were travelling in hit a tractor at Antaram. They were returning after participating in a programme at Medak.