The Valley Kings brought a large number of Doyas from Indian Plains under Shaktiballabh sardar. During the first assault in 1757, the Gorkhali army killed 1200 enemies, mostly Doyas, but were badly beaten themselves. Both sides suffered heavy losses. As they advanced towards Kirtipur, the combined force of Valley Kings under Kaji Gangadhar Jha, Kaji Gangaram Thapa and Sardar Shaktiballabh brought Havoc to the outnumbered Gorkhalis. The two forces fought on the plain of Tyangla Phant in the northwest of Kirtipur. Surapratap Shah, the King's brother lost his right eye to an arrow while scaling the city wall. The Gorkhali commander Kaji Kalu Pande was surrounded and killed, and the Gorkhali king himself narrowly escaped with his life into the surrounding hills disguised as a saint.