Introduction of communal electorate system was the biggest deficiency of Indian Councils Act, 1909. In the Act, different groups and classes were provided with separate electorates. The seats for Muslims, Chambers of commerce, zamindar, etc. were to be kept reserved. These seats were more than the ratio of their population in the country. It promoted communal-ism and provided a setback to secularism. At last, it opened the way for demand of partition of India.
The India secretary, Lord Morley, considered the communal electorate system dangerous for the society, so he wrote a letter to Viceroy Lord Minto. He wrote in that letter, “Remember it, making a separate electorate, we are sowing such a damaging seed whose crops will be too bitter.”