E-Tender For Overhauling Of 11 Kv Vcb Trolly, Ac Motor, Dc Shunt Motor Auxiliary Supply 230 V, Battery Bank, Master Relay And Over Current Earth Fault Numerial Relay At 33/11 Kv Sub-Station Do-Sarka Nahan Under Esd Nahan No. Ii. Ned-117/2025-26