Mirza Raja Jai Singh (July 15, 1611 – August 28, 1667) , Kachhvaha Rajput prince and one of the senior generals under the Mughal emperors Shah Jahan (1628-58) and Aurangzeb (1658-1707), succeeded to the feudal chieftainship of Amber (Jaipur) in 1617 when he also got his first appointment in the Mughal army. "Since then", writes Sir Jadunath Sarkar in his, History of Aurangzeb, vol. IV, "he had fought under the imperial banner in every part of the empire from Baikh in Central Asia to Bijapur in the Deccan, from Qandahar in the west to Mungir in the east." When he was fighting for the throne in 1858, Aurangzib had solicited and secured Jai Singh's assistance as a reward for which he was made governor of Delhi city with the grant of Sambhar, a rich province flourishing on its salt trade.