Is it permissible to allow non-Muslims to join in the Janaazah Salaat of their Muslim relative?

Answer

It is not permissible. Answering this question, Hadhrat Maulana Ashraf Ali Thanvi (Rahmatullah alayh) said: ―It is waajib to prevent a Hindu (or any non-Muslim) from joining the Janaazah.‖ That means, they should not be allowed to even join in the Janaazah procession nor at the burial. They are spectacles of Allah's ghadhab. But today we find munaafiq molvis such as Reverend Abraham Bham and his like inviting kuffaar politicians into the Musjid and then ushering them into the first Saff.