An unidentified person attacked a car carrying employees of the Nitta Gelatin India Limited at Infopark here around midnight on Friday.
Police said the attacker acted on an impulse when the car got in his way.
The incident occurred around midnight when a few employees of the company were leaving after the night shift in a cab. The car reportedly turned onto the right side of the road near Infopark as construction work was going on along the left.
The angry motorcyclist allegedly smashed his helmet through one of the windows of the vehicle and fled. Police are on the lookout for the attacker.