Original sentence: Bhatra tradition says that they came originally from Sri Lanka and that they were descended from the earliest 16th century followers of Guru Nanak, the founder of Sikhism
Edited sentence: Bhatra tradition says that they came originally from Sri Lanka and that they were one of the original followers of Guru Nanak, who were decedents of Raja Shivnabh and the holy poet Baba Changa Rai ,they became earliy 16th century followers of Guru Nanak, the founder of Sikhism