The Muslim League observed “Direct Action Day” on August 16, 1946, which led to communal violence in:

(A) Delhi
(B) Lahore
(C) Kolkata
(D) Mumbai

The answer is: (C) Kolkata
The Muslim League observed “Direct Action Day” on 16 August 1946, which led to widespread and brutal communal violence, most notably in Calcutta (now Kolkata). The violence, which came to be known as the “Great Calcutta Killing,” was a major event in the lead-up to the Partition of India in 1947. The violence also spread to other regions, including Bihar, Noakhali, and the Punjab.