R.M.O. 1600 Kva Electrical Substation Equipments Of Bhasha Bhawan, 2 Nos. 1000 Kva And 1 No. 500 Kva Electrical Substation, 8 Nos. Dumb Waiters In Two Banks (Comprising 4 Nos. Each Bank), 2 Nos. 10 Passengers, 2 Nos. 8 Passengers 1 No. 13 Passengers Lift At Bhasha Bhawan, National Library Complex, Kolkata During 2025 26. (Sh: Providing Services For Operation Prive Maintenance Of Sub Station Equipments And Passenger Lifts Installed In Bhasa Bhawan, N.L. Complex, Kolkata.)