Ramesh Singh (40), his 26-year-old wife Kusum, daughter Riya (7) and son Shishu (5) were found dead at their home today, police said.
Singh, posted in an Army unit at Chandigarh, had came on leave today to his home.
According to the locals, Singh knocked at the door and after there was no response he jumped inside the house and entered into some argument with his wife.
Gun shots were heard by locals later, after which police was called.
Prima facie, Singh, after the argument, shot dead his wife and the two children, and later turned the gun to himself, police said.