The most fascinating demographic feature of post partition Ludhiana was the religious composition of its population. Ludhiana had changed dramatically in the post-partition period. The town transformed itself from being a Muslim majority locality to non-Muslim majority area after 1947.The population of Ludhiana district declined between 1941 to 1951 but the population of Ludhiana city grew by 38 per cent.Although the 1951 census doesn’t provide a detailedbreakdown of religious composition, but in 1961, it is clear that the Muslim community had virtually all migrated to Pakistan. In 1947, 302,482 Muslims left Ludhiana district and migrated to West Pakistan and in their place 169,267 Hindus and Sikhs migrants settled in the district.
Link to research paper by Dr. Pushpinder Kaur