Digbardhan Sen sought the help of Mir Qasim, the Nawab of Bengal, to help defend against the Gorkhalis. Mir Qasim, sought to gain loot and plunder from the invasion, as he using lavish gifts to get on the East India Company's good side. In December 1762, he sent around 3,500 troops under Gurgin Khan, an Armenian man named Gregory who had helped train Mir Qasim's army, to launch an attack on Makwanpur, which had only recently been captured by the Gorkhalis.