West Punjab received the largest number of refugees (73.1%), mainly from East Punjab and its contiguous areas. Sindh received the second largest number of refugees, 16.1% of the total migrants, while the Karachi division of Sindh received 8.5% of the total migrant population. East Bengal received the third-largest number of refugees, 699,100, who constituted 9.7% of the total Muslim refugee population in Pakistan. 66.7% of the refugees in East Bengal originated from West Bengal, 14.5% from Bihar and 11.8% from Assam.