bids are invited for operation and maintenance of other machines and plants - as per bid specific atc “day to day grass cutting in switchyards, cleaning of cable trenches at the 33kv main sub-station and field sub-station of ananta ocp for a period of 02years”. clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth upto 30cm measured at a height of 1m above ground level and removal of rubbish up to a distance of 50m outside the periphery of the area cleared clearing grass and removal of the rubbish up to a distance of 50m outside the periphery of the area. cleared cleaning of cable trenches by engaging 10 numbers of unskilled cleaning labour alongwith 1 skilled supervisor each time total quantity :