Why is gandhi so opposed to the salt tax

The Salt March, which took place from March to April 1930 in India, was an act of civil disobedience led by Mohandas Gandhi (1869-1948) to protest British rule in India.The march resulted in the arrest of nearly 60,000 people, including Gandhi himself. India finally was granted its independence in 1947.

The Salt March, also known as the Dandi March and the Dandi Satyagraha, was an act of nonviolent civil disobedience in colonial India led by Mohandas Karamchand Gandhi to produce salt from the seawater in the coastal village of Dandi (now in Gujarat), as was the practice of the local populace until British officials introduced taxation on salt production, deemed their sea-salt reclamation activities illegal, and then repeatedly used force to stop it. The 24-days march began from 12 March 1930 and continued until 6 April 1930 as a direct action campaign of tax resistance and nonviolent protest against the British salt monopoly, and it gained worldwide attention which gave impetus to the Indian independence movement and started the nationwide Civil Disobedience Movement. Mahatma Gandhi started this march with 78 of his trusted volunteers. The march was over 240 miles. They walked for 24 days 10 miles a day.

The march was the most significant organised challenge to British authority since the Non-cooperation movement of 1920–22, and directly followed the Poorna Swaraj declaration of sovereignty and self-rule by the Indian National Congress on 26 January 1930.[1]

Gandhi led the Dandi March from his base, Sabarmati Ashram, miles (390 km) to the coastal village of Dandi, which was located at a small town called Navsari (now in the state of Gujarat)Navsari|Dandi]] to produce salt without paying the tax, growing numbers of Indians joined them along the way. When Gandhi broke the salt laws at 6:30 am on 6 April 1930, it sparked large scale acts of civil disobedience against the British Raj salt laws by millions of Indians.[2] The campaign had a significant effect on changing world and British attitudes towards Indian sovereignty and self-rule [3][4] and caused large numbers of Indians to join the fight for the first time.