This document discusses labour force participation rates (LFPR) in India. It defines LFPR as the proportion of the working age population that is employed or unemployed. There are four concepts used to measure LFPR in India - usual principal status, usual principal and subsidiary status, current weekly status, and current daily status. The document explains each concept and how they differ in terms of who is included in the labour force. It also discusses how LFPR, unemployment rates, and work participation rates vary depending on which concept is used.