After the split of moderate nationalists and the militant nationalists from the National Congress, the British Government started playing the game of "Divide and Rule" and tried to win over moderate nationalist opinion so that the militant nationalists could be isolated and suppressed.
To placate the moderate nationalists it announced constitutional concessions through the Indian Councils Act of 1909 which are known as the Morley-Minto Reforms of 1909.
Morley-Minto Reforms Increased the number of elected members in the Imperial Legislative Council and the provincial councils.