of dyarchy. It provided for the constitution of Punjab Legislative Assembly of 175 members presided by a Speaker and an executive government responsible to the Assembly. The Unionist Party under Sir Sikandar Hayat Khan formed the government in 1937. Sir Sikandar was succeeded by Malik Khizar Hayat Tiwana in 1942 who remained the Premier till partition in 1947. Although the term of the Assembly was five years, the Assembly continued for about eight years and its last sitting was held on 19 March 1945. Partition The struggle for Indian independence witnessed competing and conflicting interests in the Punjab. The landed elites of the Muslim, Hindu and Sikh communities had loyally collaborated with the British since annexation, supported the Unionist Party and were hostile to the Congress party led independence movement. Amongst the peasantry and urban middle classes, the Hindus were the most active National Congress supporters, the Sikhs flocked to the Akali movement whilst the Muslims eventually supported the Muslim League. Since the partition of the sub-continent had been decided, special meetings of the Western and Eastern Section of the Legislative Assembly were held on 23 June 1947 to decide whether or not the Province of the Punjab be partitioned. After voting on both sides, partition was decided and the existing Punjab Legislative Assembly was also divided into West Punjab Legislative Assembly and the East Punjab Legislative Assembly. This last Assembly before independence, held its last sitting on 4 July 1947. Demographics The first British census of the Punjab was carried out in 1855. This covered only British territory to the exclusion of local princely states, and placed the population at 17.6 million. The first regular census of British India carried out in 1881 recorded a population of 20.8 million people. The final British census in 1941 recorded 34.3 million people in the Punjab, which comprised 29 districts within British territory, 43 princely states, 52,047 villages and 283 towns. In 1881, only Amritsar and Lahore had populations over 100,000. The commercial and industrial city of Amritsar (152,000) was slightly larger than the cultural capital of Lahore (149,000). Over the following sixty years, Lahore increased in population fourfold, whilst Amritsar grew two-fold. By 1941, the province had seven cities with populations over 100,000 with emergence and growth of Rawalpindi, Multan, Sialkot, Jullundur and Ludhiana. The colonial period saw large scale migration within the Punjab due to the creation of canal colonies