Refurbishment and upgradation of existing old sytem including, supply, delivery, erection, testing and commissioning of 6. 6KV HT panels at Kalabgoor and 3. 3KV HT panels at Patancheru, Phase- II, pumping stations and repairing and reconditioning of Non Return Valves, supply and fixing of BF valves along with accesspries etc under MDWSS, III & IV under Electrical division, S. R. Nagar, Hyderabad