He was a sibling of Babu Gulab Singh, a freedom fighter of First Independence War of 1857 and Taluqdar from Pratapgarh Estate, Awadh. His brother Babu Gulab Singh who established a village, at present known as Katra Gulab Singh, located on the bank of Bakulahi River; 30 km toward south from Pratapgarh district headquarters Bela Pratapgarh. It is said that Medni Singh also participated in 1857 Revolution War against British Raj along with his brother. Possibly, he was son of Raja Chhatradhari Singh Somavanshi of Pratapgarh (now part of Uttar Pradesh).