purchase of battery 50v 110v and 220v smf vrla battery banks for various 66 kv and 33 kv electric sub stations in ndmc area , supplying of 50 v, 200 ah smf vrla batteries banks consisting of 25 nos.,2 v x 200 ah cells with rack & connectors etc as required. make: exide/amar raja/hbl or equivalent. , supplying of 110 v, 200 ah smf vrla batteries banks consisting of 55 nos.2 v x 200 ah cells with rack & connectors etc as required. make: exide/amar raja/hbl or equivalent. , supplying of 220 v, 100 ah smf vrla batteries banks consisting of 110 nos.2 v x 100 ah cells with rack & connectors etc as required. make: exide/amar raja/hbl or equivalent. , credit/buy back of old batteries 2 v200 ah smf type. (25 cell - 1 set) , credit/buy back of old batteries 2 v 200 ah smf type. (55 cell - 1 set) , credit/buy back of old batteries 2 v100 ah smf type. (110 cell - 1 set)