The partition of British India split the former British province of Punjab between the Dominion of India and the Dominion of Pakistan. The mostly Muslim western part of the province became Pakistan's Punjab province; the mostly Hindu and Sikh eastern part became India's East Punjab state (later divided into the new states of Punjab, Haryana and Himachal Pradesh). Many Hindus and Sikhs lived in the west, and many Muslims lived in the east, and the fears of all such minorities were so great that the Partition saw many people displaced and much inter-communal violence. Some have described the violence in Punjab as a retributive genocide. Total migration across Punjab during the partition is estimated at around 12 million people; around 6.5 million Muslims moved from East Punjab to West Punjab, and 4.7 million Hindus and Sikhs moved from West Punjab to East Punjab.