I understand there are cultural differences here, and I admit I don't know much about Hinduism or the culture of India; however, I would tell her she is making you uncomfortable. It sounds like no matter what the cultural differences are, that she has gone too far. The only thing I can suggest is to talk it over with her and let her know its making you uncomfortable until you can afford to move out. If you perceive something is wrong with this, then more than likely something is. Trust your instincts.