information:extraction, information:filtering
Religion

With around 66% adherents according to 2011 Indian Census, Hinduism is the predominant religion of Ludhiana, followed by Sikhism with 29% of the population. Islam is followed by 2.8% and Christianity by less than 1%.

Prior to India's partition, Ludhiana had a population of 111,639 with Muslims being the majority with 62.9%. The Hindus were 31.1% and Sikhs 4.7%. It changed post-partition with a drastic reduction in Muslim percentage and simultaneous increase in Hindu and Sikh population, owing to migration of people between West and East Punjab.