Refurbishment and upgradition of existing old system 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 & reconditioning of Non return valves, supply and fixing of BF valves along with accessories etc, under Manjira Drinking Water Supply Scheme, Phase-II, III & IV, of under Electrical Division, S.R.Nagar, Hyderabad.