- Number of Employment in Small Scale Industrial Units Entrepreneurs Memorandum I and II Filed by Micro and Small Scale Enterprises in Kolkata District of West Bengal (2012-2013 to 2014-2015)
- Average Daily Number of Workers Employed at Registered Factories in Kolkata District of West Bengal (2008)
- Number of Factory Workers Classified by Industry at 2 Digit Level of (NIC - 1998) in Kolkata District of West Bengal (2007)
- Number of Employment at Small Industrial Units Registered in Kolkata District of West Bengal (2006-2007)
- Average Daily Number of Workers Employed at Registered Factories in Kolkata District of West Bengal (2007)