[1] He was born Kunwar Kaim Singh Rajawat, the second son of the Thakur Raghunath Singhji of Isarda, a petty chieftain related to the ruling Kachwaha house of Jaipur .[1] His fate was altered by his encounters with the guru Brahmachari Giridhari Sharan, whose disciple he became, and with the ruling Sawai Ram Singh II.[1] Married as his first wife later Patrani a Jadon lady related to the house of Karauli State Kushal Kanwarji daughter of Rao Budhpal Singhji of Amargarh estate, Etah in United Provinces of Agra and Oudh.As the ruler of the large and prosperous state of Jaipur,Sawai Madho Singh embraced modern ideas on education and sanitation.He also appealed to the Viceroy, Lord Curzon, to start a permanent Famine Relief Fund, which Singh began with a gift of £133,000 (equivalent to £18,176,667 in 2023).