Tender For annual maintenance & operation (round the clock) contract of electrical lnstallation (dg sets of the capacity of 437.5 kva (water cooled), 320 kva (water cooled), 125 kva (air cooled), 11 kv/415v transformer with h.t./ lt panel and allied accessories at ncui complex, 3, siri institutional area, august kranti marg, new delhi-110016 for the year 2025-26, 2026-27 and 2027-28