Operation And Comprehensive Maintenance Of Ems, 110 Opn And Comp. Maintenance Of Various Of Ems Service Rep Of Existing Faulty 12 Volts Battery Servicing Of 500kva Capacity Diesel Engine Providing Calibration And Testing Of Existing Idmt Relay Making Arrangement For The Measurement And Testing Of Insulation Resistance Making Arrangement For The Measurement And Testing Of Earth Resistance Servicing Of Vaccume Circuit Breaker Servicing Of Air Circuit Breaker