bids are invited for boq total quantity : 1---1 boundary, ground levels and drain levels survey at island ground area under ge chennai ( i ) conducting topographic survey by using total station instrument with total station operator and survey assistants for collecting the levels of existing features and drain particulars of existing proposed compound site, collecting the field particulars of the proposed drain, conducting levelling survey for longitudinal section cross section of the drain, preparation of site plan with alignment drawing and feasible report, de-silting the drain for invert level measurement location only, labour hire charges, transportation of total station instrument from office to site and all other incidental charges etc complete. ( ii ) submission of proposals for discharge of accumulated water during rainy seasons. ( iii ) soft and hard copies of levelling sheets