Welcome to India, you will have a great time here! If possible, plan to stay a few days before or after the conference so that you can enjoy the culture and hospitality of the place. Read our Pre-arrival checklist for International Participants.
You will find many good articles for first time visitors, here are a couple: Visagov, Lonely Planet. Do drop us a note help@comped.acm.org if you have specific queries or you want ideas!