I) Repairing Of Iga=47-100 Amp 550 V Reyrolle Burn Make Acb At 10 & 11 Pit Of Khas Kajora Colliery. Ii) Repairing Of Ece Make Ocb 600 Amps 550 V At 10 & 11 Pit Of Khas Kajora Colliery.