League exploited the issue and agitated for the return of the mosque to Muslims. Consequentially, a thousand members of the Muslim League were imprisoned. Eventually, due to panic the government restored the mosque to Muslims.The separation of Sindh from Bombay Presidency triggered Sindhi Muslim nationalists to support the Pakistan Movement. Even while the Punjab and North-West Frontier Province were ruled by parties hostile to the Muslim League, Sindh remained loyal to Jinnah. Although the prominent Sindhi Muslim nationalist G.M. Syed left the All India Muslim League in the mid-1940s and his relationship with Jinnah never improved, the overwhelming majority of Sindhi Muslims supported the creation of Pakistan, seeing in it their deliverance. Sindhi support for the Pakistan Movement arose from the desire of the Sindhi Muslim business class to drive out their Hindu competitors. The Muslim League's rise to becoming the party with the strongest support in Sindh was in large part linked to its winning over of the religious pir families. Although the Muslim League had previously fared poorly in the 1937 elections in Sindh, when local Sindhi Muslim parties won more seats, the Muslim League's cultivation of support from local pirs in 1946 helped it gain a foothold in the province, it didn't take long for the overwhelming majority of Sindhi Muslims to campaign for the creation of Pakistan. Partition (1947) In 1947, violence did not constitute a major part of the Sindhi partition experience, unlike in Punjab. There were very few incidents of violence on Sindh, in part due to the Sufi-influenced culture of religious tolerance and in part that Sindh was not divided and was instead made part of Pakistan in its entirety. Sindhi Hindus who left generally did so out of a fear of persecution, rather than persecution itself, because of the arrival of Muslim refugees from India. Sindhi Hindus differentiated between the local Sindhi Muslims and the migrant Muslims from India. A large number of Sindhi Hindus travelled to India by sea, to the ports of Bombay, Porbandar, Veraval and Okha. Population Demographics Sindh has the second highest Human Development Index out of all of Pakistan's provinces at 0.628. The 2017 Census of Pakistan indicated a population of 47.9 million. The major ethnic group of the province is the Sindhis, but there is also a significant presence of other groups. Sindhis of Baloch origin make up about 30% of the total Sindhi population (although