The accused Krishnam Raju allegedly used to harass his wife Hemavathi (25) for dowry due to which she would often visit her parents' house in the village, they said.
Hemavathi went to her parents' house following a quarrel with Raju two days ago. Raju yesterday reached her house and asked his in-laws V Abbayi (52) and V Kamala (48) to send her back but they refused. However, when they were asleep in the wee hours, Raju attacked them with a knife killing them on the spot, police said.
Raju took his two-year-old son along with him while fleeing and later handed him over to his parents.
Police said a case of murder was registered against Raju who is on the run.
