Salt March was an effective symbol of resistance against colonialism because\xa0(i)\xa0All classes could identify with salt as it was a cheap and essential food item.(ii)\xa0Tax on salt and the monopoly over its manufacturing was a sign of the oppression of British Rule.(iii)\xa0It would affect the British Economy.Gandhiji reached Dandi on 12th March, 1930\xa0and violated salt law by manufacturing salt from sea water. Breaking the salt law was an apparent defiance of British authority and was a direct challenge to British Rule in India. It had a far reaching repercussion on the whole structure of colonialism.