DRILLING, EXCAVATION, LOADING, TRANSPORTATION, DUMPING, SPREADING & LEVELLING, ETC., OF 597.130 LBCM OF IN-SITU OB (WHICH INCLUDES 2.230 LBCM OF TOP SOIL, 2.230 LBCM OF SUB SOIL, 571.250 LBCM OF HARD OB & 21.420 LBCM OF COAL) AND EXCAVATION OF 10.840 LCM OF LOOSE SILT WITH CONVENTIONAL EQUIPMENT AND ADDITIONAL WORKS VIZ., 1,57,032 RMT OF DRILLING AT RG OC-III EXPANSION PROJECT, RG-II AREA DURING A PERIOD OF 36 MONTHS.