Ashok Kumar, a native of Aligarh in Uttar Pradesh, was found strangled with refrigerator cable in his house in Manak Vihar. He was living with his cousin Vinod and was into milk business, police said.
The murderers decamped with Rs 1.5 lakh in cash besides other valuables, they added.
A CCTV camera installed at the entry point of the residential colony, where the victim lived, has captured the pictures of the suspects. One of the suspects has been identified, according to police.
It appears to be a case of personal enmity, police said.
The incident came to light this afternoon when Vinod, the cousin, reached home.