Conducting Final location survey with Hybrid Modern Survey Technology using DGPS integrated RTK/ PPK UAS DRONE ( NPNT Compliant from DGCA ) based photogrammetric and Lidar System, Conducting Soil Investigation & Preparation and Submission of Various Detailed Drawings and Preparation of Estimate and DPR of 4th line between Gondia- Nagpur ( 134. 00Km ) section & left out sections of 4th Line between Bilaspur- Gondia of South East Central Railway.