Sindhuli Gadhi, a glorious fort in Sindhuli district, is of huge historical importance because of the famous battle of November 1767 between the then Gorkhali soldiers led by Khajanchi Bir Bhadra Upadhyay and Sardar Banshu Gurung and the British troop led by Captain George Kinloch. The Gorkhali army registered the victory over the British troops on Kartik 24, 1824 BS.
Let me make it clear at the outset that there are two historical characters with the name of Amar Singh Thapa—both from Gorkha district—one from Siran Chok, the other from Borlang. Amar Singh from Siran Chok was senior in age and thus he was called Bada Kaji. The one from Borlang was called Chhota, meaning younger. Both were Kajis by rank.