The car driver, yet to be identified, fled after the incident.
The victim was unidentified as Nilesh Sankharva.
Inspector K M Raval of Pradyunmanagar police station said the mishap occurred when Shankharva was on his way to his office.
The car, a Lancer, hit him from behind.
Sankharva, who was lying unconscious on the road, was taken to city civil hospital by some passers-by, but he died during the treatment.