This document discusses the historical development of human resource accounting (HRA) in five stages from 1960-1990. It then provides details on the implementation of HRA practices in various Indian organizations, including the models used to value human resources. Several companies are discussed that use the Lev and Schwartz model to measure the economic value of employees based on their future earnings. Tables show human resource valuations and numbers of employees for companies like HMTL, SAIL, Infosys, Satyam, and HPCL.