Complex sentence: Thathals claim the Suryavanshi branch of Rajput ancestry from Raja Karan Singh through his son Raja Thathu whose other son Naru founded the Narma/Narwa clan.
Split into simpler sentences: Thathals claim the Suryavanshi branch of Rajput ancestry. They claim their kinship with Raja Karan Singh through his son Raja Thathu whose other son Naru founded the Narma/Narwa clan.