His son Sardar Ran Singh ( d. 1781 ) became the next leader .
Nar Singh was killed in 1768 by the Kharal Jats of Kot Kumaliah .
Nar Singh 's son Sardar Ran Singh ( d. 1781 ) became the next leader .
Nar Singh was killed in 1768 by the Kharal Jats of Kot Kumaliah .