I doubt that any of that would have horrified very many Indians as all of what you have mentioned are very much a part of the urban mainstream Indian society. What horrifies more people here in the US, is that before I moved here I lived with my parents, and after getting married, my wife moved into the same household. Moreover, if I ever moved back to India, i would still go back to live in the same house. Also, the elderly hardly ever need to move into "homes".

For the OP, an openly gay friend of mine went to Delhi with me for my cousin's wedding a couple of years ago. He had a great time. Sure he was offered "a nice Indian girl" to get married to, but it was always with a nudge and a wink. He had a great time with all the attention, and has gone back once again since.
Delhi and Gurgaon are very urban and some night life in Delhi, on particular nights of the week, is gay-centric.