Mirza Muhammad Siraj ud-Daulah (, Bengali: নবাব মীর্জা মোহাম্মেদ সিরাজউদ্দৌলা), more commonly known as Siraj ud-Daulah (1733 – July 2, 1757), was the last independent Nawab of Bengal. He was Arab by ethnicity. The end of his reign marked the start of British East India Company rule over Bengal and later almost all of South Asia.