Physical abuse in Road Rage on a road in Bangalore

Hi - I had an awful experience. Was driving on road and about to take a turn was ahead in queue. Car ahead of me was slow to move off the signal to turn but the guy in car behind lost patience he thought it is me delaying he honked like anything. Then I showed him hand gesture what's the rush. He then followed me and asked me to stop somewhere. As I got down of the car he came and started abusing me and finally pushing me vigorously. I was shocked by his behaviour tried to call police but as I was in a rush had an appointment to meet took his details like car photo. Possibly there might a cctv camera on road. I really want this guy to be taught a lesson as he cannot think he owns the road. Please advise what legal action I can take against him. I think first step would be to place an FIR in area where this happened. This guy was physical with me for no reason. I could have fought back but as I was with my mother I didn't react.