A Pinch of Salt Rocks An Empire -(Salt March-Dandi March) by Sarojini Sinha

Twenty-four years earlier, in South Africa, where he was then living, his satyagraha had forced the government to repeal the law forcing Indians in the Transvaal to register themselves and carry certificates bearing their finger prints to prove that they had the right to live in that country.
In India, he was applying the same tactics of defying the authority of the alien British Government in a peaceful, non-violent way and refusing to co-operate with it.
The British had come to India 330 years earlier, landing at the port of Surat, hardly 50 Kilometers from Dandi, where Gandhiji and his followers stood on April 5, 1930, ready to begin the struggle against them.