DRILLING, EXCAVATION, LOADING, TRANSPORTATION, DUMPING, SPREADING & LEVELLING ETC., OF 369.006 LBCM OF IN-SITU OB (WHICH INCLUDES 3.070LBCM OF TOP SOIL, 12.408 LBCM OF SUB-SOIL & 353.528 LBCM OF HARD OB) AND RE-HANDLING OF 16.159 LCM OF LOOSE OB (WHICH INCLUDES 7.940 LCM OF SHALE, 6.182 LCM OF TOPSOIL & 2.037 LCM OF SILT) WITH CONVENTIONAL EQUIPMENT AND EXTRACTION OF 76.867 LBCM OF COAL/SHALE WITH SURFACE MINER INCLUDING CUTTING, LOADING, TRANSPORTATION, DUMPING, ETC., AND ADDITIONAL WORKS VIZ., 4,500 SHOVEL HOURS, 2,000 DOZER HOURS & 1,20,000 RMT OF DRILLING AT KOYAGUDEM OPENCAST PROJECT-II, YELLANDU AREA DURING A PERIOD OF 36 MONTHS.