Allocation to sub-strata

Rural sector:
462 FSUs of sub-stratum 1 were allocated to the districts where these FSUs were located. For each sub-stratum 2, the maximum allocation was 4. A set of 856 FSUs in the Central sample and 796 samples in the State sample were selected at all-India level for sub-stratum 2. The minimum allocation for sub-stratum 3 and above was 2.

Urban sector:
For the 27 million-plus cities in the urban sector, stratum allocations were divided among the sub-strata in proportion to number of non agricultural workers in the unorganised sector as per EC '98. For other towns, stratum allocation was divided among the sub-strata in proportion to number of FSUs in the sub-strata with double weightage to sub-stratum 1. The minimum sub-stratum allocation was 2.

For details of sub-stratification see the manual "Introduction Concepts, Definitions and Procedures" attached in external resources.