DRILLING, EXCAVATION, LOADING, TRANSPORTATION, DUMPING, SPREADING & LEVELLING, ETC., OF 722.07 LBCM OF IN-SITU OB (WHICH INCLUDES 4.716 LBCM OF TOP SOIL, 681.686 LBCM OF HARD OB & 35.668 LBCM OF COAL), EXCAVATION OF 7.645 LBCM OF TOP SOIL BENEATH THE EXTERNAL DUMP AND RE-HANDLING OF 17.578 LCM OF LOOSE TOP SOIL WITH CONVENTIONAL EQUIPMENT AND ADDITIONAL WORKS VIZ., 2000 SHOVEL HOURS, 1000 DOZER HOURS & 3,00,000 RMT OF DRILLING AT GODAVARIKHANI COAL MINE (No.2 & 2A AND No.5), RG-I AREA DURING A PERIOD OF 36 MONTHS.