The bodies of Krishna Gopal (70) and his wife Kala Devi (65) were found from their house in Sureli village under Sumarpur police station area in the district.
The bodies, which appeared to be two to three days old, bore injury marks, they added.
The couple's daughter had been trying to contact them ever since they returned from her house in Kanpur on Tuesday, police said, adding that the bodies were found when she reached the house in search of them today.