Which movements were launched under the leadership of Mahatma Ghandi to achieve the independence of India?

Noncooperation Movement from 1920 to 1922 Gandhi preached
noncooperation and nonviolent resistance against British rule.  The Indian people were
to boycott governmental entities such as school, courts and officials were to refuse
titles associated with the British government.  People were also asked to refuse British
textiles and to use Swadeshi cloth.

Civil disobedience
movement began in 1930’s and included the famous Salt March where Gandhi marched to the
sea in protest of the government tax on salt.  This movement ended in 1931 when both the
British and Indian factions acquiesced to certain
demands.

Quit India Movement brought about in August 1942
which was last ditch effort to gather all Indians regardless of religion in unity
against the imperialism of the British government.