The significant change that occurred in British India after World War II was its independence from British rule in 1947. The war weakened Britain's economic and military power, making it challenging to maintain control over its vast empire. Growing nationalist movements, led by figures like Mahatma Gandhi and Jawaharlal Nehru, pushed fervently for self-rule. The Indian Independence Act of 1947 ultimately partitioned British India into two sovereign states: India and Pakistan. This transition precipitated widespread communal violence, mass migrations, and continued socio-political complexities in the region, significantly altering the geopolitical landscape of South Asia.