Pramit Bhattacharya

The measurement of India's GDP, and changes to the methodology in 2026, have been widely discussed globally. In this piece we lay out how India's GDP is calculated, and enumerate the recent changes and their implications.

India's Periodic Labour Force Survey is a vital source of employment data, and drives research and policy. We track changes in its methodology and their implications, key uses of the dataset, and important debates around its methodology and findings.

Capturing the true situation of manufacturing employment in India is a vital part of understanding its economy. We examine the implications of using different data sources to track manufacturing.

The 2022-23 and 2023-24 rounds of India's Periodic Labour Force Survey appeared to show large, unexplained deviations on several important indicators. Our research identifies the error that drove those swings.

How the NFHS has evolved over time, how it collects its data, and key discussions and debates around it.

The National Family Health Survey consistently underestimates the proportion of young males and elderly females in India's population. Estimates of the sex ratio from the NFHS need to be used with caution.

Between censuses, and to plan for the future, countries rely on population projections. Understanding how these projections are made, as well as their past successes and failures, is vital.