Explanation:

• C. Rajagopalachari's formula was a proposal formulated by Chakravarti Rajagopalachari in year 1944 to solve the political deadlock between the All India Muslim League and the Indian National Congress on the independence of British India.
• In May 1945 Wavell visited London and discussed his ideas with the British Government. These London talks resulted in the formulation of a definite plan of action which was officially made public simultaneously on 14 June 1945 Lord Wavell announced a plan for a new Executive Council in which all members except the Viceroy and the Commander in Chief would be Indians.
• The Indian National Army trials (INA trials), which are also called the Red Fort trials, were the British Indian trial by courts-martial of a number of officers of the Indian National Army (INA) between November 1945 and May 1946, for charges variously for treason, torture, murder and abetment to murder during World War II.
• The Royal Indian Navy revolt (also called the Royal Indian Navy mutiny or Bombay mutiny) encompasses a total strike and subsequent revolt by Indian sailors of the Royal Indian Navy on board ship and shore establishments at Bombay harbour on 18 February 1946.