Individual Slip (Universal and Sample), National Industrial Classification 1970, National Classification of Occupotions 1968, List of few Typical Industries, Note on Sampling procedure adopted in 1981 Census, Marginal workers by industrial category, age and sex, Marginal workers by industrial category and non-workers by educational level and sex, A Marginal workers by industrial category and non-workers by educational level and sex-Urban, Rural, Female main workers Classified by industrial category, age and martial status, Occupational classification of main workers in non-household industry, trade business, profession or service by class of worker and sex.