It's been a few years since I was in India, but it was quite common to see men walking with their arms around each other and women holding hands. My
Indian friends said it's just a friendship thing. Many Indians just don't understand the concept of being gay - especially if they haven't travelled to countries where it's an open lifestyle . You're right about the marriage questions - the first time my family went, our host offered to find a wife for my brother and arrange the wedding so she could go back with him! I don't know what horrified them the most: that I lived alone, was unmarried at age 25, worked and was not supported by my parents, or (gasp) that I would choose my own husband and marry for love. Indians do ask very personal questions, and can be very persistent, especially if you are in a social setting, like being invited to their home. It might be better to just say you're single. Enjoy your trip - India is a wonderful country.