At the time of the partition in 1947, Pakistan had a population of 32.5million;[REF][REF] the population increased by ~57.2% between the years 1990 and 2009 [REF].
Even after partition in 1947, Indian Muslims continued to migrate to Pakistan throughout the 1950s and 1960s, and these migrants settled mainly in Karachi and other towns of Sindh province [REF].