Police are yet to ascertain whether Vimal Sethia, who lived alone at his residence, killed himself or it was an accident.
His neighbours rushed to help and called the police, who rushed him to a hospital, where he was declared brought dead.
Police have not found any suicide note from Sethia's house and are questioning Sethia's relatives. The case is being probed from all possible angles, said DCP (East) B S Gurjar.
Sethia owned a cable factory at northeast Delhi's Vishwas Nagar area. His wife and son live in a separate house elsewhere, police said.