The correct answer is: A. 16th April, 1930
The Salt March, also known as the Dandi March, was a 240-mile (390 km) protest march led by Mahatma Gandhi in India in 1930. The march began on 12 March 1930, from Gandhi’s ashram in Sabarmati, Gujarat, and ended on 6 April 1930, when he reached the coastal town of Dandi, Gujarat. At Dandi, Gandhi and his followers made salt from seawater, breaking the Salt Laws of British India. The Salt March was a major turning point in the Indian independence movement, and it helped to galvanize support for Gandhi’s nonviolent methods of protest.
The Salt Revolt in Patna was a part of the larger Salt March. It began on 16 April 1930, when Gandhi’s followers in Patna marched to the banks of the Ganges River and began to make salt from the river water. The British authorities arrested the protesters, but the protests continued. The Salt Revolt in Patna was one of the most significant events in the Indian independence movement.
Option A: 16th April, 1930 is the correct answer. The Salt Revolt in Patna had started from this date.
Option B: 18th April, 1930 is incorrect. The Salt Revolt in Patna had started from 16th April, 1930.
Option C: 4th May, 1930 is incorrect. The Salt Revolt in Patna had started from 16th April, 1930.
Option D: 20th May, 1930 is incorrect. The Salt Revolt in Patna had started from 16th April, 1930.