Conducting Final Location Survey including Preparation of DPR as per latest Railway Board guidelines, involving modern survey techniques e.g. Airborne or terrestrial LIDAR and/or drone photogrammetry for linear projects of Railways. Geotechnical Investigation, Signalling works, Electrical works & operating work for construction of 4th line/ Flyover line/ Byepass line (1) Khana-Sainthia 4th Line (84.10Km). (ii) Masagram Flyover (5 Km). (iii) Katwa By- pass connecting Bardhanman-Katwa Single line with Katwa-Azimganj Line (10 Km) and (iv) Bardhaman By-pass connecting Talit station in Khana Jn. Bardhanman main line with Bardhaman-Katwa single line (10 Km) over Eastern Railway. at Multi Location,Multi State,India