Dhananjay Kumar Sinha, 54, a former Navy man, hit Kanu Jadhav, 72, a porter, with a piece of wood Monday afternoon following a quarrel, police said.
Onlookers held Sinha and handed him over to police, said inspector Pradeep Kasbe of Kalyan taluka police station.
Sinha was booked for murder. A local court Tuesday remanded him in police custody till February 16.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)