Why is "Census of India prior to independence" trending?

Wikipedia Overview

Census in British India refers to the census of India prior to independence which was conducted periodically from 1865 to 1941. The censuses were primarily concerned with administration and faced numerous problems in their design and conduct ranging from the absence of house numbering in hamlets to cultural objections on various grounds to dangers posed by wild animals to census personnel. The sociologist Michael Mann called the census exercise "more telling of the administrative needs of the British than of the social reality for the people of British India". The differences in the nature of Indian society during the British Raj from the value system and the societies of the West were highlighted by the inclusion of "caste", "religion", "profession" and "age" in the data to be collected, as the collection and analysis of that information had a considerable impact on the structure and politics of Indian society.