Nepali historian Surya Bikram Gyawali contends that he was married to Dharmabati and he had 9 sons namely: Surbir, Randhoj, Ran Singh, Ranjor, Bhakta Bir, Ram Das, Narsingh, Arjun Singh and Bhupal. He further states that all the sons of Amar Singh contributed to the unification of Nepal. Bada Amar Singh had ten sons from four wives as per the Thapa genealogy: Ranabir, Ranasur, Ranadhoj, Ranabhim, Ranajor, Bhaktabir, Ramdas, Narsingh, Arjun Singh, and Bhupal Singh. The Office of the Nepal Antiquary also mentions sons of Amar Singh as Ranajor, Bhaktavir, Ramdas, Ranasur, Ranabir, Arjun, Narsingh and Bhupal. The genealogical table produced by Kumar Pradhan shows the sons of Bada Amar Singh as - Ranadhoj, Bhaktabir, Narsingh, Ramdas and Ranajor, all of whom were Kaji at some point.
