Muhammad had arrived to the Bengal Subah (Bengal Province) of the Mughal empire accompanied by his father Haji Ahmed and his uncle Alivardi Khan. He worked under Shuja-ud-Din Muhammad Khan, the naib nazim of Orissa, as a petty officer. After Shuja-ud-Din Muhammad Khan became Nawab of Bengal, Nawazish Muhammad Khan was made the paymaster of the Nawabs army. He was also made the superintendent of customs based in Murshidabad. He married Ghaseti Begum the daughter of Alivardi Khan. After Alivardi Khan became the Nawab of Bengal, Muhammad was made Dewan of crown lands. He was also appointed the governor of Dhaka with Husain Quli Khan as his deputy governor. He was also given the title Shahmat Jang. Due to his illness the state affairs were managed by his wife and deputy. He adopted the younger brother of Siraj ud-Daulah, Ikramuddaula, who died from smallpox. Muhammad grief-stricken died soon after in 1755.
- Karim, Abdul (1964). Dacca: the Mughal capital. Asiatic Society of Pakistan. pp. 23–25.
- Karim, KM. "Khan, Nawazish Muhammad". en.banglapedia.org. Banglapedia. Retrieved 15 January 2018.
- Khan, Abdul Majed (2007). The Transition in Bengal, 1756-75: A Study of Saiyid Muhammad Reza Khan. Cambridge University Press. p. 19. ISBN 9780521049825.
- Khan, Muhammad Mojlum (2013). The Muslim Heritage of Bengal: The Lives, Thoughts and Achievements of Great Muslim Scholars, Writers and Reformers of Bangladesh and West Bengal. Kube Publishing Ltd. p. 147. ISBN 9781847740625.