Multiple choice Large-scale communal riots took place in August 1946 in Calcutta because the viceroy called upon Nehru to form the interim government the Muslim league observed Direct Action Day on August 16 the Cabinet Mission mischievously planned for Balkanizing the country none of the above Reveal answer Fill a bubble to check yourself B Correct answer Explanation The Muslim League declared August 16, 1946 as Direct Action Day to demand a separate Pakistan. This led to large-scale communal riots in Calcutta, marking the beginning of widespread communal violence.