Tender For corrigendum : construction work of 02 nos. addl. 220 kv feeder bays comprising of civil works, supply, erection, testing & commissioning and integration of control, monitoring of entire protection system & bay equipments into existing iec 61850 compliant scada & substation automation system for accommodating new 220 kv dcds line in respect of m/s nmdc at 400/220kv s/s jagdalpur on turnkey basis.