Mahatma Gandhi and his followers began their march to Dandi, a seashore village, from Sabarmati Ashram on March 12, 1930.
The march was to protest against the British monopoly in salt production and sale. That is why the march came to be known as the Dandi March.
The British rulers levied a heavy tax on salt.
Defying the laws, Gandhi produced salt from the seawater upon reaching Dandi.
Salt made by Gandhi sold for Rs 1600
The salt lifted behind by Gandhi from the Dandi shore was sold for Rs 1600 to the highest bidder.