The famous Irwin Declaration on 31 October 1929 promised:

a dominion status for India

The correct answer is Option 4- a dominion status for India

The famous Irwin Declaration on 31 October 1929 promised a dominion status for India.

The Irwin Declaration was a statement made by Lord Irwin, the then Viceroy of India, in which he stated that the British government was committed to granting India dominion status in the future. Dominion status was a form of self-government that was enjoyed by other British colonies, such as Canada and Australia.

The Irwin Declaration was a significant concession by the British government, and it was hailed by many Indian leaders as a step towards independence. However, the declaration was also met with skepticism by some Indian nationalists, who believed that the British government was not sincere in its promises.

The Irwin Declaration led to the Round Table Conferences, which were held in London between 1930 and 1932 to discuss constitutional reforms in India. However, the Round Table Conferences failed to reach a consensus, and the British government did not grant India dominion status until 1947.

The Irwin Declaration was an important milestone in the Indian independence movement. It showed that the British government was willing to make concessions to the Indian people, and it helped to pave the way for India's independence in 1947.