High Quality Content by WIKIPEDIA articles! Raja Mahendra Pratap Singh (December 1, 1886–April 29, 1979) was a freedom fighter, journalist, writer and revolutionary social reformist of India. He was popularly known as the Aryan Peshwa. He was born in Thenua gotra Jat Hindu princely family of state of Mursan in Hathras District of Uttar Pradesh on 1 December 1886. He was the third son of Raja Ghanshyam Singh. At the age of three, Raja Harnarayan Singh of Hathras adopted him as his son. He was married to a Jat Sikh family of Jind princely state of Haryana (then in Punjab) in 1902 while studying in college. She died in 1925.