I am an undergraduate student studying Geographic Information Systems. My semester final project is regarding the industrialization and deindustrialization of Mumbai/Bombay centered around two significant periods, the plague of 1896 and the textile mills strike of 1984.
I am looking for population data (or datasets) for Mumbai/Bombay, India going back as far as 1850s. So far, the earliest readily available population data I can find is 1991. I've datamined a bit and found population data within early 20th century publications, but all provide different numbers. I understand that population estimations for Mumbai/Bombay will vary greatly for this time period depending on the source; however, it would help tremendously if I could find a trusted source that stretches back to at least mid-19th century.