Supply And Installation Of 02 Nos. Of Ngr 3.3 Kv, 10Amp, 190 Ohms For 02 Nos. Of 3 Mva Transformer 11Kv/3.3Kv Transformers At Main Sub-Station Of Gidi-C Colliery Along With Maintenance, Repairing And Painting Of 3.3Kv Overhead Line Poles At Gidi C