@Vaibhav: Are you sure your DL is impounded for the same reason?
I was challaned more than 3 times (4 actually) last year near Ambience mall Gurgaon by Delhi police twice for helmet, once for not wearing seat belt and once near Kotla for jumping red light and excessive speeding (The car couldn't stop actually) but my DL was never impounded. I once even asked the cop of DL impounding but they simply smiled and gave me receipt saying "it won't be". But yes, someone not known to me had got his impounded because he was caught driving drunk numerous times and was pleading the cops for giving it back to him.
OT: BTW Delhi cops are quite advanced, their handheld machine has all the info and the cops always told me date, time and vehicle number for the challans issued to me in past just by entering my DL number into their handheld. Maybe now they have all my info and hence they used to give me my challan within a minute of looking at my DL no.
Important and confirmed: Just had a word with a Delhi police official known to me. As per him since 12th December, over speeding, jumping red light and drunken driving will result in licrnse being impounded for 3 months. Not only this, if the person will be caught driving with license impounded then the vehicle the person is driving will also be impounded and stricter punishment will be faced.