A fisherman went missing after two boats collided with each other in Arabian Sea off Vasai coast on Sunday. Two boats and a helicopter have been deployed to trace Baban Pal (42), who fell into the sea after the trawler, Morning Star, collided with Trinton Liberty, a tug towing platform, at 1.15 a.m. on Sunday. Coast Guard spokesperson Commandant Avinandan Mitra said that Dhanaji Koli, the secretary of the fishing association of Bhati Koliwada, had reported the incident to them.