The Bengal Legislative Assembly (Bengali: বঙ্গীয় আইনসভা) was the largest legislature in British India, serving as the lower chamber of the legislature of Bengal (now Bangladesh and the Indian state of West Bengal). It was established under the Government of India Act 1935. The assembly played an important role in the final decade of undivided Bengal. The Leader of the House was the Prime Minister of Bengal. The assembly's lifespan covered the anti-feudal movement of the Krishak Praja Party, the period of World War II, the Lahore Resolution, the Quit India movement, suggestions for a United Bengal and the partition of Bengal and partition of British India.