Tender For repair maintenance of 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: illumination of outside of old annex substation and air circulating fan in n. l. complex, kolkata).