1)Preventive Maintenance Of 11Kv, 3Phase, Overhead Power Line Near Tumni Jore And At Different Location Of Nakrakonda-Kumardihi B Colliery 2)Supply & Erection Of 11Kv Gang Switch At C Pit And Emergency Breakdown Maintenance Of 11Kv Overhead Line Feeding Power To Different Location Of Nakrakonda-Kumardihi-B.