Operation And Maintenance Of 11Kv Sub Station Equipment, 320Kva Dg Set, Internal Electrical Installations, Water Supply Pump Sets, Addressable Fire Alarm System, Fire Fighting System And Lifts At Nirvachan Sadan, New Delhi For The Fy 2026-27. Sh - Reparing And Annual Comprehensive Maintenance Of 20Kva Pegasus Make And 10Kva Online Ups System Subwork/Packages:Repairing And Annual Comprehensive Maintenance Of 20Kva Pegasus Make And 10Kva Online Ups System