S.No -Industrial Zone -Major Industries involving
1. Delhi/ NCR -Automobile, Design, Project Engg, Power Plants, Leather Industry, Infrastructure.
2. Kolkata/ Howrah/ Jamshedpur/ Rourkela/ Bhilai/ Bokaro -Iron & Steel, Ship Building, Automobile, Project Engg, Power Plants, Jute Mills, Paper Mills.
3. Ahmedabad/ Surat/ Vadodara -Textiles, Chemical Industry, Medicines & Drugs Industry, Automobile, Oil & Gas, Project Engg.
4. Mumbai/ Navi Mumbai/ Thane/ Pune -Automobile, Power Plants, Project Engg, Infrastructure, Atomic Power, Design, Textiles, Ship Building, Oil & Gas.
5. Chennai/ Salem/ Coimbattore/ Bangalore -Automobile, Aeronautical, Iron & Steel, Design, Ship Building, Textiles, Oil & Gas, Atomic Power, Auto Ancillaries, Auto Assembling, Infrastructure. Sumber http://mechanicalmansion.blogspot.com/