Which was the famous movement launched by Gandhi to break the salt law?

Dandi march was the famous movement launched by Gandhi to break salt law. As the British government imposed the tax on the salt and established British monopoly over its production, Gandhiji decided to break the salt law. So he walked for 24 days from the Sabarmati ashram to Gujarat coastal town of Dandi. He reached Dandi on 6th April 1930 and broke the salt law by manufacturing salt.