Necessary Dehydration, Filtration And Commissioning Of 500 Kva, 11Kv/440V (3 Nos) And 300 Kva, 11Kv/440V (2 Nos) And 750 Kva 11Kv/440V (1 No) Lighting Transformer At Site Of Beldanga, Kendra And Pandaveswar Colliery Under Pandaveswar Area