We provide Tender Bidding Support for Design, Manufacture, Testing, Supply And Retro-Filling Of Natural Ester Oil To The In-Service Power Transformers Of Capacity 110/11 Kv 110/33Kv 8Nos Of 20Mva, & 220/110 Kv 3Nos Of 100Mva, Including Necessary Modifications To The Existing Transformers And Oltcs Conforming To Kptcl Specifications And Commissioning And Buy Back Of Released Mineral Oil From The Transformer On Total Turnkey Basis At Various Substations Pertaining To Belagavi, Hubballi Circles Of Trz Zone