There are a few good boxer breeders in Delhi, one of whom is Mukul Vaid (he is on this website also), the other I just cant get the name. Go have a look at all the boxers available with all the breeders in Delhi, but insist on seeing both parents. Contact KCI or the Delhi Kennel Club to get a list of good boxer breeders in Delhi.
Also be sure what you want. In the show ring I feel the american boxers are more popular or rather liked. However I personally prefer the European ones. There is a kennel called lastell down south which does have European boxers also. Have a look.