Tender For final location survey for iradatganj- manikpur section including preparation of drawings, detailed cost estimate & bill of quantities (boq), land acquisition estimation along-with other ancillary activities by carrying out detailed topographical survey and setting up a complete 3d photogrammetry and dtm (digital terrain models) using modern survey technologies like lidar/dgps based integrated drone etc and autocad system in connection with 4th line between "iradatganj- manikpur"(84.5 km) and y connection between idgj (ir) to kcnn (dfc) of north central railway. (total = (84.4 + 5.0) km = 90 km (approx.)