what were his major achievements?
Satyagraha Movement, the non violent approach to the fight against British
Mahatma Gandhi
Satyagraha 
when did dandi march started and when it ended From 12 March 1930 to 6 April 1930 who led it? Mohandas Karamchand Gandhi why was it done? It was a direct action campaign of tax resistance and nonviolent protest against the British salt monopoly. where was the one who led it born? Gujarat, western India where did he study? University College, London was he a vegetarian? Yes, he took vegetarian food was any title given to him? "Mahatma" was he received any award? Awarded an LL.D., Man of the Year in 1930
wiki:25694891
Mahatma Gandhi [SEP] Salt Satyagraha (Salt March)
While many Hindu leaders championed a demand for immediate independence, Gandhi revised his own call to a one-year wait, instead of two. The British did not respond favourably to Gandhi's proposal. British political leaders such as Lord Birkenhead and Winston Churchill announced opposition to "the appeasers of Gandhi", in their discussions with European diplomats who sympathised with Indian demands. On 31 December 1929, the flag of India was unfurled in Lahore. Gandhi led Congress celebrated 26 January 1930 as India's Independence Day in Lahore. This day was commemorated by almost every other Indian organisation. Gandhi then launched a new Satyagraha against the tax on salt in March 1930.