In this article author Dr. Ishtiaq Ahmed writes about the city of Lahore before Partition.

Link to article: http://www.india-seminar.com/2006/567/567_ishtiaq_ahmed.htm

Lahore before the 1947 riots: Ever since it fell to the Afghans in the early 11th century, Lahore had continuously been a religiously mixed and varied city. According to the 1941 census, the total population of the municipality of Lahore was 671,659, out of which Muslims constituted a majority of 64.50%. Except for a small Christian community and some individuals from other minor groups such as Parsees, the rest were Hindus and Sikhs who together made up 36% of the population. The situation was similar in Lahore district as a whole. Muslims constituted 60.62% while Hindus and Sikhs together formed 39.38% of the population. The Hindus and Sikhs, however, owned some 80% of the property in the city and the district. That Lahore ceased to exist at the time of the partition of India.