1) For your benefit let me quote the section that deals with drunk driving and the punishment: 12.10 Driving by a drunken person or by a person under the influence of
drugs. (MVA S 185)—A person who, while driving, or attempting to drive, a
(a) has, in his blood, alcohol exceeding 30 mg. per 100 ml. of blood
detected in a test by a breath analyser, or
(b) is under the influence of a drug to such an extent as to be incapable of
exercising proper control over the vehicle, is punishable for the first offence
with imprisonment for a term which extends to six months, or with fine which
extends to two thousand rupees, or with both; and for a second or subsequent
offence, if committed within three years of the commission of the previous
similar offence, with imprisonment for a term which extends to two years, or
with fine which extends to three thousand rupees, or with both.
2) Besides your license can get suspended as well.
3) Usually , as is evident from the provision in the law the first time offender is let off with a penalty and a stern warning.