The Periodic Labour Force Survey (PLFS) is the flagship labour-market survey conducted by the National Statistical Office (NSO) under the Ministry of Statistics and Programme Implementation (MoSPI). It was launched in April 2017 to replace the quinquennial (five-yearly) employment-unemployment surveys of the National Sample Survey Office (NSSO), the last of which was conducted in 2011–12. The PLFS was instituted on the recommendation of an expert committee chaired by Amitabh Kundu, with the express objective of providing more frequent and timely labour-force estimates. Its annual reports (July–June) cover both rural and urban areas, while a separate quarterly bulletin gives urban estimates, sharply improving the periodicity of official employment data that earlier suffered a long lag.
The survey rests on two key measurement approaches. The Usual Status (US) approach records activity over the preceding 365 days (a "principal status" plus "subsidiary status"), capturing the longer-term employment picture, while the Current Weekly Status (CWS) records activity over the preceding seven days, capturing short-term and seasonal participation. The PLFS reports the three headline indicators that dominate exam answers: the Labour Force Participation Rate (LFPR) — the share of the working-age population either working or seeking work; the Worker Population Ratio (WPR) — the share actually employed; and the Unemployment Rate (UR) — the share of the labour force that is unemployed. A person is "in the labour force" only if working or actively seeking work, which is why low LFPR (especially among women) can coexist with a low headline unemployment rate. The PLFS also classifies workers as self-employed, regular wage/salaried, and casual labour, and reports the Periodic Labour Force Survey age cut-off of 15 years and above for these rates.
The PLFS has become the authoritative source for tracking India's structural labour trends. Successive rounds have documented a notable rise in the female LFPR, a decline in the headline unemployment rate from the much-debated 6.1 per cent recorded in 2017–18 (the first PLFS, which drew political controversy when leaked before official release), and persistent concerns about the quality of employment given the dominance of self-employment and informal work. From January 2025, MoSPI revamped the PLFS to release monthly labour-force estimates for both rural and urban areas and shifted to a rolling sample design, a significant methodological upgrade that aspirants should note as current affairs. PLFS data also feed into computation of metrics cited in the Economic Survey and underpin debates on jobless growth and the demographic dividend.
For the UPSC examination, the PLFS is tested in General Studies Paper III (Indian Economy — growth, development and employment) and frequently anchors answer-writing on unemployment, informalisation, and women's workforce participation. Typical question angles ask candidates to distinguish Usual Status from Current Weekly Status, to interpret falling unemployment alongside stagnant LFPR, or to critique data quality. Prelims may test factual recall — the launching year (2017), the conducting agency (NSO), and the indicators (LFPR, WPR, UR). A precise, definition-anchored treatment citing the Kundu committee and the 2025 monthly-data reform distinguishes a strong answer.
Example
In its 2017–18 report, India's National Statistical Office recorded a headline unemployment rate of 6.1 per cent — a 45-year high — which became a major electoral controversy after the figures were leaked before the official 2019 release.
Frequently asked questions
The NSSO conducted employment-unemployment surveys only every five years (quinquennially), the last in 2011-12. The PLFS, launched in 2017, provides annual rural-plus-urban estimates and quarterly urban estimates, and from 2025 monthly estimates, vastly improving timeliness.