I haven't been to India yet, but work with some people from India and hear a fair bit about the customs and traditions in India.
They actually find toilet paper repulsive and find they can do a much better job by just splashing a bit of water in the general direction of the necessary area with the left hand.
I have noticed that Indian wives will never say their husband's name aloud, even when speaking to him. They believe it is very disrespectful to say his name aloud. She will often just say what needs to be said without referring to him at all, maybe calling him "ji" on occasion.
To be a widow in India is very bad luck. They are treated very poorly and generally looked down upon in society, particularly by the older generation. In many places, they are social outcasts, cannot attend social nor religious gatherings and are not even allowed in the presence of newly married couples.