Mahatma Gandhi's key accomplishments in the fight for Indian independence include pioneering the approach of nonviolent resistance and leading significant movements such as the Salt March in 1930. His efforts were fundamental in mobilizing millions of Indians against British colonial rule. Gandhi's philosophy of satyagraha, or truth-force, emphasized civil disobedience and peaceful protest, which influenced not just India's struggle but also global civil rights movements. Additionally, through his commitment to social issues, including the removal of untouchability and the promotion of self-reliance, he transformed the independence movement into a broader quest for social justice.