this happened last night around 8:20pm
my wife and i were heading to Garuda Mall for a movie and were taking the Banaswadi main road route. when going up the ITC flyover (towards Fraze Town), i noticed two cars standing still on the flyover - the one in front being placed diagonally. as we were passing by, i saw the driver's door of the car in front (orangish Ikon) was open and a little baby was sitting on the driver's seat and crying. i immediately put the left indicator and stopped slowly. then putting the hazard lights, i revered around 100mts until i was parallel to the two cars (on the opposite side). i lowered my window and asked one of the two guys as to what happened - one of them said something about wrong overtaking hitting his car. very next moment heated argument broke out between the driver of the car in front (Ikon - that got hit) and the other driver (DZire - that overtook from the left side). the driver of the Ikon (an middle aged man) grabbed the other driver's collar and shook him around.
at this point i knew this could get out of hand and very quickly. i keep the hazard light on, put the handbrake and cross the road. by this time, another person on a Activa slowed down and tried to talk sense in to both the drivers. the guy in the DZire was travelling alone, but the guy in the Ikon had a whole family in the car, including a baby. firstly, i separated them both to avoid physical confrontation. since the driver of the DZire seemed educated and bit more calm, i decided to try to pacify the Ikon driver, who was very agitated and was shouting and yelling.
i heard the Ikon driver's side of the story and even examined the wheel arch which he said was damaged by the DZire. i walked back and spoke to the DZire's driver about what happened.
now, the Ikon driver's spouse emerges from the car and i advise him to ask her to be seated in the car as other vehicles are passing by at speed and also asked him to move his ahead and park in the same lane as the DZire and switch on the hazard lights.
by this time, the Ikon driver has calmed down a bit and i tell them both that there is no point in trying to fight over who was right and who was wrong - mistake has happened and damage is done; no point in aggravating the situation further. i told them since both cars have insurance, call the cops, file an FIR and let insurance take care of it. for the first time, they both seemed to agree on something. i then told them that they was causing inconvenience for other road users and politely asked them to get off the flyover, park on the side somewhere ahead and call the cops. they both agreed and while the DZire driver was getting into his car i told him whatever happens, don't aggravate the other guy - just keep calm and get over with it as soon as possible; road rage isn't worth it. he seemed to get it.
they both move out and i crossed the road and got in my car with a smirk on my face
the argument: - Ikon driver: the DZire overtook him from the left and while overtaking, clipped the front wheel arch. despite the contact, the DZire driver was kept going and that the Ikon driver had to overtake him and stop in front to get him to stop (hence the reason why the Ikon was diagonally parked on the flyover)
- DZire driver: the Ikon guy was having the little baby on his lap and was hogging the right lane and was not letting anybody pass. when he was overtaking from the left, the Ikon driver swerved and that's when the clipping happened. the he then slowed down to a stop and was not overtaken and made to stop as the Ikon driver claimed.
my 2 cents: i'm pretty sure the Ikon driver was driving with the baby on his lap - since when he got out, he left the baby in the driver's seat. since the Ikon wasn't giving way, the DZire overtook from the left. at this point the Ikon moved left either to give way or swerve when he suddenly saw the DZire on the left or tried to block him. this is when the supposed clipping happened (although, i'm not quite convinced - there was multiple dents on the wheel arch which couldn't have been caused by a passing car; also, i didn't see any telltale signs of scraping on the right side of the DZire). the Ikon driver got peeved that he got overtaken from the left (maybe there was eye contact or something said between them) and raced to overtake and stop the DZire.

phone camera + bad light = not so awesome picture!