- Number of Factories, Capital Invested and Number of Persons Employed in Ranchi District of Jharkhand (2009-2010)
- Number of Factories, Capital Invested and Number of Persons Employed in Ranchi District of Jharkhand (2008-2009)
- Number of Factories, Capital Invested and Number of Persons Employed in Ranchi District of Jharkhand (As on March, 2005)