A new system of data collection on issues pertaining to labour and employment, called the Periodic Labour Force Survey, replacing the very comprehensive and detailed surveys on the employment and unemployment situation, also known as quinquennial surveys, was introduced in India in 2017. This paper is an attempt to highlight the effects of the modified sampling methods adopted in the PLFS on data outcomes and inconsistencies. Compared to the EUS survey, the determining criteria used in the PLFS for classifying households across various socio-economic strata seem to be irrational, less comprehensive, and technically incorrect. A fundamental change in the basis of sample selection introduced with the PLFS makes it incomparable to the earlier surveys.