India gained independence from British colonial rule on August 15, 1947. The Indian independence movement, led by figures such as Mahatma Gandhi and Jawaharlal Nehru, played a crucial role in advocating for self-rule and pushing for independence. After a long struggle, India achieved its independence, leading to the formation of the Dominion of India, which later became the Republic of India in 1950. This day is celebrated annually in India as Independence Day, marking the country's freedom from British colonialism.