The employment and unemployment surveys undertaken by the National Sample Survey Organisation (NSSO) have established over the years are one of the prime sources of statistics on factor market of labour and activity participation of the population. The architecture of these surveys is complex, since the measurement of its indicators through the households, necessitates percolation of investigation into multilayered cross classification of various characteristics of age, sex, education, skill and training, industry, occupation, time disposition, mobility and wages.