Global competitive bids are invited for the upgradation of existing 132 kV Jiribam, Aizwal, Kumarghat and Haflong air-insulated switchgear (AIS) substations of POWERGRID (single main with transfer bus scheme) to the gas-insulated switchgear (GIS) (double bus arrangement) under the North Eastern Region Strengthening Scheme (NERSS)–VIII [Substation Package –SS02].

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