With reference to the British colonial rule in India, consider the following statements: 1. Mahatma Gandhi was instrumental in the abolition of the system of 'indentured labour'. 2. In Lord Chelmsford's 'War Conference', Mahatma Gandhi did not support the resolution on recruiting Indians for World War. 3. Consequent upon the breaking of Salt Law by Indian people, the Indian National Congress was declared illegal by the colonial rulers. Which of the statements given above are correct?