In yet another suspected case of caste killing, a minor boy hacked to death his elder sister who was in a relationship with a Scheduled Caste youth, in Rajavallipuram in Thailaiyuthu police station limits in Tirunelveli on Tuesday night.
The incident came to light when the boy walked into the police station and surrendered for the crime.
According to police, A. Thangathai (20), was working in a private company operating from SIPCOT industrial estate at Gangaikondan. She had fallen in love with a Scheduled Caste man, who was working with her in the same factory.