I have friends, a married couple who converted from Hinduism. The wife developed a chronic disease and in her faith system and society this was believed to be due to sins in a past life and she was rejected and scorned by people. Their conversion came about when a good friend who was a Charismatic Catholic and at that time was working installing windows in homes. He is very friendly and a good salesman and spent lots of time socializing with them while he working, and I think they bought Jesus right along with the windows!
Jokes aside, receiving Jesus freed our dear friend from her prison of rejection from her community. She was able to experience the love of God and know He loved her and had not rejected her and loved her exactly as she was, a dear child. She also developed a very deep devotion to Our Lady and did her husband. I think the amount of spirituality that permeates life in India means that people want a faith which is just as all embracing, a once a week on Sunday Christianity is not going to be attractive. Catholicism enables those who want to go to church every day to do that.