design, manufacture, supply, erection, testing and commissioning of 2x25/31.5 mva, 66/11 kv gis substation with sas along with associated 66 kv underground transmission line from existing 66/11 kv substation, sector-8 to proposed 66/11 kv gis substation technology park at imt manesar (haryana) on turnkey basis(electrical+civil)