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 2026-27. (SH: Providing services for operation & preventive maintenance of sub-station equipments and passenger lifts installed in Bhasha Bhawan, N.L. Complex, Kolkata.)