India - Employment and Unemployment Survey, January to December, 1983, 38th Round

For each member categorized 'working' at the time of movement from the place of last usual residence, description of the corresponding occupation in which he was engaged will be recorded in column (13) and the three digited occupation family code (NCO 1968) in column (14). If a person was found to have been pursuing more than one occupation, the occupation on which relatively more time was spent by the person during the 365 days preceding two date on migration will be considered for the purpose of making entries in these columns.