annual repair and maintenance of to various roads under pwd sub division wr-22 , division west road-2 , delhi during 2020-21 . sh- consultancy services for re-modelling / redesigning of storm water drains on both sides of gurugowalkar marg from kanjhawala chowk to jai consultancy services for re-modelling / redesigning of storm water drains on both sides of gurugowalkar marg from kanjhawala chowk to jain nagar further extended up to nearest feasible outfall in main drain of iandfcd , preparation and submission of preliminary & final design reports with maps and drawings etc . , draft detailed project report ( maps and drawings ) , detailed designs , good for construction drawings for storm water drainage work and other structures and operation and maintenance plans for drainage systems in whole length of road ( 4 . 85 km . approximately ) along with connecting roads as mentioned including other activities as given herein: a ) to carry out a detailed digital topographical survey work using electronic total station of the area by recording of requisite points and reduced levels of the area of salient points and including plotting of l- section and cross section of the road of the existing drainage system , b ) preparation & showing the above details on i ) google map , ii ) site introduction plan ( google satellite image ) iii ) existing drainage system i . ) google map of broader prospective of the area of interest , showing the road marked with drains etc . ii . ) site introduction plan- google satellite image c ) designing of a new water disposal system / drains of the area using settled hydraulic principles and on good professional practices and assessing the estimated discharge and working out its possible solution for its disposal to the nearby major drain in consultation of the engineer-charge - pwd . d ) preparation of necessary preliminary and detailed working drawings , special specifications , e ) preparation of necessary , preliminary estimate f ) all other works as mentioned in this document