Repair, Maintenance, and Installation of Plant/, Systems/ Equipments- BSNL BTS SITES UNDER KOLKATA BA;, Dismantling of existing SMPS capacity Less or Equal to 400, Amps for Calcutta Krishnanagar Berhampur OA; Existing DC, Cables MCBs, and Installation of, Plant/ Systems/ Equipments- BSNL BTS SITES UNDER, KOLKATA BA; Carrying of old dismantled SMPS Capacity, Less or Equal to 400 Amps to concerned OA for Calcutta, Krishnanagar Berhampur OA; Existing DC Cables MCBs, Lifting and Installation of new SMPS Capacity Less or Equal, to 400A for Calcutta Krishnanagar Berhampur OA; Existing, DC Cables MCBs, KOLKATA BA; Offering AT of SMPS Less or Equal to 400, KOLKATA BA; Dismantling of existing SMPS capacity more, than 400 Amps for Calcutta Krishnanagar Berhampur OA;, Existing DC Cables MCBs, and, Installation of Plant/ Systems/ Equipments- BSNL BTS SITES, UNDER KOLKATA BA; Carrying of old dismantled SMPS, Capacity capacity more than 400 Amps to concerned OA, store for Calcutta OA; Existing DC Cables MCBs, and Installation of Plant/ Systems/ Equipments,- BSNL BTS SITES UNDER KOLKATA BA; Lifting and, Installation of new SMPS Capacity capacity more than 400, KOLKATA BA; Offering AT of SMPS capacity more than 400