Heard these companies : "GVK, GMR, Lanco, Madhucon, NCC, Nagarjuna Fertilisers, Navayuga, Soma Enterprise, Progressive Constructions, Sujana, IVRCL, Ramky Infra, SEW Infra, Transstroy, Sri City and Gangavaram Port". These companies literally built modern india in decade 2000-10 - some of the best public infra - delhi airports, hyd airport, bang airport, mumbai airport, largest shipping ports like krishnapatnam.. They are now mostly irrelevant corporates now. In 2008 almost 8 out of 10