In 1939 the Second World War broke out Viceroy of India Linlithgow immediately announced that India was also at war.
The colonial government of India entered the War on behalf of the Allies without consulting the Congress ministries so the Congress ministries resigned in protest.
The Muslim League celebrated the end of Congress rule as a Day of Deliverance on 22 December 1939.
In 1939 Subhas Chandra Bose became the President of the Congress by defeating Pattabhi Sitaramayya, the candidate of Gandhi.
When Gandhi refused to cooperate, Subhas Chandra Boseresigned his post and started the Forward Bloc and Rajendra Prasad elected as the President in Calcutta session.
The Communists initially opposed the Second World War calling it the “Imperialist War“.
When Nazi attacked on the Soviet Union, the Communists called it the ‘People’s War’ and offered cooperation to the British.
As a result, in 1942, the ban on the Communist Party of India was lifted.