tender for topographical survey of river yamuna from palla ( delhi haryana border ) to wazirabad barrage. - topographical survey of river yamuna from village palla ( delhi haryana border ) to wazirabad barrage which includes the following:i ) topographical plan ( scale 1:5000 ) .ii ) elevation cross-sections at100 m from rd 13400 m to rd 12400 m and other at every 250m interval or less as per site conditions on a suitable scale and as per directions of the engineer-in-charge.iii ) longitudinal section of the river on suitable scale and as per directions of the engineer-in-charge.iv ) identification and submission of change in the river yamuna course and its topography with respect to previous survey completed from village palla ( delhi haryana border ) to wazirabad barrage. the whole survey work shall be executed with the help of dgps machine, eco sounder / sonar system including cost of labour, material, equipments, tools and plants, motor boats, temporary site office, if required, transport etc. complete and preparation of soft and hard copies of the work as per terms and conditions of the agreement and as per direction of the engineer-in-charge.