up-keeping of residential units at tanakpur power station , banbasa , upkeeping of residential area ( open area , roads/drains/public toilets etc . ) including brooming collect the waste disposal of garbage by any mechanical/manual means upto main dustbin as per direction of engineer-in-charge . for residential area = 1117953 sqm per month . considering minimum staff as per sl . no . 4 . 2 of section-ii conditions of contract . , contractor profit and overhead charges/ consideration , as required for execution of the entire scope of work . , cost of consumable for upkeeping of residencial units as per annexure- c of scc .