Janaazah

Participating in the funeral rights of a non-Muslim

Q: My wife is a converted Muslim and her father has recently died who was a Hindu. There are some rituals that only my wife can perform as she is the only child. I am not sure wether to allow her to perform that rituals which may involve a Puja as well. Can you please guide me what happen if she still perform such rituals despite knowing that I am not happy if she performs those.