Rendering services for Conducting Aerial Topographical Survey using DGPS based integrated Drone, preparation of L- section, ESP, SIP, GAD, soil exploration, preparation of bill of quantity and EPC tender documents and other ancillary works between Alauli- KusheshwarAsthan Station ( Approx- 21. 00Kms ) in connection with construction of new BG rail line between Khagaria- KusheshwarAsthan station.