hey AI101..
1. No you cannot carry alcohol on your cabin baggage with in India.
2. Yes you might have checked in your luggage all the way to AMD.. but I am more than likely sure that you will have to collect your luggage at International Arrival and Check them in again at DEL, since you will be clearing your customs upon arrival at DEL, they will have to have a look at your baggage. So, you can transfer your liquor bottles to check in baggage at DEL.
Happy Flying !!.. and err Happy Drinking
