drilling, excavation, loading, transportation, dumping, spreading & levelling etc., of 460.096 lbcm (including in-situ top soil 4.218 lbcm, sub-soil 16.877 lbcm and hard ob 439.001 lbcm), diversion of nallah along the north-west side of the quarry for a quantity of 0.71 lbcm and re-handling of 17.07 lcm (which includes 12.07 lcm of top soil from top soil stack yard to external dump, re-handling of 4.00 lcm of shale from existing shale yard to +60 external dump yard & re- handling of 1.0 lcm of g-17 grade coal proposed to dump from existing coal yard) with conventional equipment and additioanal works viz., 3500 shovel hours, 2000 dozer hours & 165000 rmt of drilling at pit- i of kocp- ii, yellandu area for a period of 36 months .