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?

1. Statement 1 is correct. Mahatma Gandhi played a crucial role in opposing the system of 'indentured labour' through his campaigns, particularly highlighting the plight of Indian labourers in South Africa and later in India. His efforts were instrumental in the eventual abolition of the system by the British colonial rule in 1917. 2. Statement 2 is incorrect. At Lord Chelmsford's 'War Conference' in 1918, Mahatma Gandhi actually supported the resolution on recruiting Indians for World War I, believing that cooperation would aid India's cause for self-government. 3. Statement 3 is correct. Following the Civil Disobedience Movement, initiated by the breaking of Salt Law (Dandi March) in 1930, the movement intensified. In response to the widespread defiance and boycott, the colonial rulers declared the Indian National Congress illegal in 1932 to suppress the movement. 4. Therefore, only statements 1 and 3 are correct.