Gross value added per worker (GVAPW) in any sector of the economy is an important parameter used in national accounts statistics since its product with the population of the workforce is used to estimate GDP originating in the sector. The author describes the method used for estimating GVAPW in the services sector in the 57th round of the National Sample Survey, and discusses the sampling error of the estimates as well as the probable reasons for large possible error in some sub-sectors.