Surender Kumar (45) was allegedly stabbed to death by his sons Vipin and Nitin last evening, police said today.
After the murder, Kumar's body was dumped in Ganga canal at Khatoli here, they said.
According to police, Kumar was murdered for trying to establish illicit relationship with his daughter-in-law.
Both accused have been arrested.
In another incident, a pregnant woman Fatma wife of transporter Sajid Hasan was allegedly shot dead by her step son Sakib over a family dispute in Banat town, police said.
Meanwhile, Pradeep (35) was allegedly shot dead by his elder brother Pramender over a property related dispute at Sautu village yesterday.