The Indian National Congress initially supported the British war effort during the Second World War. They believed that supporting the war would help in gaining independence for India. Congress leaders hoped that by cooperating with the British government, India would be granted dominion status or complete independence after the war.

However, as the war progressed, the Congress grew increasingly disillusioned with the British government's lack of commitment to India's independence. They felt that the British were not willing to grant India self-rule even after the war. Additionally, the Congress was disappointed by the British government's decision to involve India in the war without consulting Indian leaders.

In 1940, the Congress passed the "Quit India" resolution, demanding an immediate end to British rule in India. This resolution marked a shift in the Congress's attitude towards the war. They began advocating for non-violent civil disobedience and mass protests to put pressure on the British government. Mahatma Gandhi played a crucial role in leading this movement.

Overall, the Congress's attitude towards the Second World War evolved from initial support to active resistance against British rule. They saw the war as an opportunity to gain independence, but when it became clear that the British were not willing to fulfill their promises, they intensified their efforts to achieve self-rule.