Final Location Survey (Fls) For Doubling Line Between Narkatiaganj - Raxaul - Sitamarhi - Darbhanga & Sitamarhi - Muzaffarpur Section (Approx. 255.5 Kms.) And For 3Rd & 4Rthline Between Barauni-Bachhwara Including Barauni Yard Remodelling(Approx. 16 Kms.), Carrying Out Detail Engineering Survey Including Leveling, Alignment, Soil Exploration, Preparation Of Plans, L-Sections, Ga Plans Of Bridges Etc., Bill Of Quantities And Other Related Ancillary Activities In Connection With Preparation Of Dpr In Samsatipur Division