- Number of Factories, Capital Invested and Number of Persons Employed in (Rural/Urban) District of Tamil Nadu (2009-2010)
- Number of Registered Factories and Workers in Chennai District of Tamil Nadu (Upto 31.03.2010)
- Number of Registered Factories and Workers in Chennai District of Tamil Nadu (As on 31.12.2009)
- Number of Factories, Capital Invested and Number of Persons Employed in Chennai District of Tamil Nadu (2008-2009)
- Number of Registered Factories, Working Factories and Average Workers in Chennai District of Tamil Nadu (2006 and 2007)
- Number of Factories, Capital Invested and Number of Persons Employed in Chennai District of Tamil Nadu (As on March, 2005)