This page provides some files that help with reading-in and cleaning up the raw data from ASI plant-level data.  Note that usual "caveat emptor" about errors apply -- do check and revise files/codes as required for your projects. (E.g. check if the issue with the multipliers I found for 1987-88 and 1988-89 still hold -- it is possible that the CSO may fix this issue in the future.) 

I request those using these files to please cite my paper:

Sivadasan, Jagadeesh, (2009) Barriers to Competition and Productivity: Evidence from India. The B.E. Journal of Economic Analysis & Policy: Vol. 9 : Iss. 1 (Advances), Article 42.

Cross-classification/concordance of codes:

• A note on various cross-classifications/concordances used in my barriers to competition paper.

• Stata datafile with a concordance between NIC70 and NIC87 classification

• Concordance between 4-digit SITC  (Rev 3) and ASI itemcodes

• Concordance between itemcode and NIC87 with proportion of itemcode in NIC87 4 digit

• Concordance between ISIC (Rev 2) 4-digit and NIC87 3 digit 

Some data setup files:

• A note outlining the different setup steps

• A zip archive of dictionary files

• A zip archive of state and other codes

• A zip archive of some setup files