DRILLING, EXCAVATION, LOADING, TRANSPORTATION, DUMPING, SPREADING and LEVELLING, ETC., OF 1038.346 LBCM OF IN-SITU OB (WHICH INCLUDES 7.340 LBCM OF TOP SOIL, 22.009 LBCM OF SUB SOIL, 976.866 LBCM OF HARD OB and 32.131 LBCM OF COAL), AND EXCAVATION OF 2.948 LBCM OF IN-SITU OB FOR NALLAH DIVERSION WITH CONVENTIONAL EQUIPMENT, AND ADDITIONAL WORKS VIZ., 6000 SHOVEL HOURS, 5000 DOZER HOURS and 3,83,000 RMT OF DRILLING AT KK OCP, MANDAMARRI AREA DURING A PERIOD OF 48 MONTHS.