Santosh (45) hailing from Kasaragod, his wife Asha (40) a government doctor, and 15-year old son Harikrishna were killed on the spot in the head-on collision near Puthalapattu, about 60 km from here, on Chittoor-Bengaluru Road, police said.
The couple's another son, aged 10, was seriously injured. After initial treatment at the Chittoor Government Hospital, he had been shifted to a hospital in neighbouring Vellore in Tamil Nadu where his condition was critical, they said.