India - Employment and Unemployment Survey: NSS 43rd Round : July 1987 - June 1988, Fourth Quinquennial Survey

The industry is defined as the sector of economic activity in which a person works.National Industrial Classification (NIC)-1970 was used for classifying the industry to which a person is attached.The NIC 1970 classifications are present ed generally in terms of 4 digited c odes in which t he left-most digit describes the ‘industry section’; the left-most two digits together describes the ‘industry division’; the left-most three digits together describes the ‘industry group’ and al l the four digits toget her pinpoints the ultimate industry class.

OCCUPATION
The nature of economic activity performed by a person is his/ her occupation. For classifying the occupation of a person the ‘National Classification of Occupations (NCO 1968)’ is used.

The entry against this item will be recorded in terms of six digited code numbers of which the first three left hand digits will refer to the appropriate 'industry group' and the next three to the relevant 'occupation family' of the NIC, 1970 and NCO, 1968 respectively. The description of the principal household industry-occupation will be recorded in the space provided along with the item description.