Tender For maintenance of electrical installation & fans i/c sub-station, compound light, lift at nsso building and guest house of nsso at mahalanobish bhawan, 164 g.l.t. road, kolkata 108 during 2025-26. (sh- replacement of damaged pole boxes, supplying, laying pole boxes, supplying, laying of street light / floodlight cable and providing floodlightluminaries and power plug etc.).subwork/packages:replacement of damaged pole boxes etc.