Introduction
The United Nations (UN) defines the essential features of population and housing censuses as  ”individual enumeration, universality within a defined territory, simultaneity and defined periodicity”, and recommends that population censuses be taken at least every ten years. The Census is necessary since it forms the basis of all the plans and programmes that the government wants to implement. Postponing the Census has immediate and long-term negative consequences for India (Saikia, 2023) . The Census offers basic demographic information at the block, sub-district, and city levels. These statistics are required for the establishment of plans, transparent programmes, and strategies for the country’s social and economic growth. With the Census’s late completion, planners and demographers are having difficulty in predicting population. The last 2011 Census should have been used as the base year for the population projection of 2021, but due to the postponement of the count, the estimation for any district or sub-block level has used the growth rate of 2001-2011, which is good for only one decade; and increasing the time period may result in an incorrect prediction. Every decade, the population situation changes, and the time period even more than ten years can bring significant changes for all population dynamics.