The 36 royal races (Chathis Rajkula) is a listing of Indian social groups purported to be the royal (ruling) clans of several states and Janapads spread over northern Indian subcontinent. Among the historical attempts at creating a comprehensive listing of the 36 are the Kumarapala Prabandha of Acharya Jinamandan Gani of 1435 AD, Prithviraj Raso of uncertain date, and Colonel James Tod, writing in 1829.