Deputy Commissioner of Police (North) Sagar Singh Kalsi said the post-mortem report confirmed that three stab injuries on his abdomen and one on his back led to his death. Some cardboard boxes containing cash were also found missing from the house, the police said, suspecting that the robbery could be the motive behind the killing. Deceased Ram Kishore Agrawal lived on the ground floor of his two-story house while his son and the other family members lived on the first floor. His wife died last year due to COVID-19. The family has at least four domestic help staying with them, the police said.