 It is said he also gained support from Shams ud-Daulah, the Naib Nazim of Dhaka.He made an announcement calling for jihad against the British, who he preached were the reasons of the problems that the peasants were facing.In 1799, Reza invaded the Kachari Kingdom, which was referred to as his "hijrat", in order to gain a larger following before facing the British in a war.