A student has been arrested after an Audi convertible allegedly driven by him rammed a scooter in Delhi, injuring two men, one of whom is in a critical condition. Officials said the red Audi hit the scooter late on Monday night near the Jor Bagh post office in south Delhi's upscale Lodhi Road area. The rider and pillion rider of the scooter were injured and rushed to the AIIMS trauma centre.