India - Employment and Unemployment Survey, July 1993 - June 1994, NSS 50th Round

INDUSTRY
The industry is defined as the sector of economic activity in which a person works.National Industrial Classification (NIC)-1987 was used for classifying the industry to which a person is attached.The NIC 1987 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

To determine the principal industry-occupation of the household, the general rule to be followed is to list all the gainful occupations pursued by the members of the household during the period of 365 days preceding the date of survey, no matter whether such occupations were pursued by the members as their principal or subsidiary (on the basis of income) occupations. Out of the occupations listed, the one which fetched the maximum earnings to the household in the reference year will be considered as the principal household occupation. The industry in which this principal occupation is pursued by one or more members of the household will usually be the household industry. But it may so happen that this principal occupation is pursued by more than one member and they do so in different industries. In such a case, the industry which fetched the maximum earnings should be consid­ered as the principal industry. In extreme cases, the earnings may be equal in two occupations or in two industry - occupation combinations. By convention, in such cases, priority will be given to the occupation or industry-occupation combination of the senior most among the participating members.