The police have arrested a 44-year-old man on charges of killing his younger brother and burying the body in the compound of their house.
The Thiruvallam police had launched an investigation after Baby, the mother of the siblings, lodged a complaint saying that Raj, her younger son, was missing.
On being questioned, the elder son, Binu, had admitted to killing his brother and burying the body in a pit next to their house.
