Diarchy was established in Madras Presidency based on the recommendations of the Montague-Chelmsford report. Five elections were held during the period diarchy was in effect and Justice Party occupied power most of the time. It ended with the election in 1937 when the Government of India Act 1935 came into effect. Government of India Act of 1919 Government of India Act of 1919 enlarged the provincial legislative councils and increased the strength of elected members to be greater than that of nominated and official members. It introduced a system of dyarchy in the Provinces. Although this Act brought about representative Government in India, the Governor was empowered with overriding powers. It classified the subjects as belonging to either the Centre or the Provinces. The Governor General could override any law passed by the Provincial councils. It brought about the concept of "Partial Responsible Government" in the provinces. Provincial subjects were divided into two categories - reserved and transferred. Education, Sanitation, Local self-government, Agriculture and Industries were listed as the transferred subjects. Law, Finance, Revenue and Home affairs were the reserved subjects. The provincial council could decide the budget in so far it related to the transferred subjects. Executive machinery dealing with those subjects was placed under the direct control of provincial legislature. However, the provincial legislature and the ministers did not have any control over the reserved subjects, which came under the Governor and his Executive council. Council The Council had a total of 127 members in addition to the ex - officio members of the Governor's Executive Council. Out of the 127, 98 were elected from 61 constituencies of the presidency. The constituencies comprised three arbitrary divisions - 1)communal constituencies such as non-Muhammadan urban, non-Muhammadan rural, non-Brahman urban, Mohamaddan urban, Mohamaddan rural, Indian Christian, European and Anglo-Indian 2)special constituencies such as landholders, Universities, planters and trade associations (South India Chamber of Commerce & Nattukottai Nagarathar Association) and 3) territorial constituencies. 25 of the non-Mohammadan Rural and 3 of the non-Mohammadan Urban constituencies were reserved for non-Brahmans. 29 members were nominated, out of whom a maximum of 19 would be government officials, 5 would represent the Paraiyar, Pallar, Valluvar, Mala, Madiga, Sakkiliar, Thottiyar, Cheruman and Holeya communities and 1 would represent the "backward tracts". Including the Executive Council members, the total strength of the legislature was 134. Elections 1920 election The first legislative council election was held in November 1920.