Final Location Survey (FLS) for Doubling Line between Narkatiaganj-Raxaul-Sitamarhi-Darbhanga & Sitamarhi-Muzaffarpur section (approx. 255.5 Kms.) and FLS for 3rd & 4th line between Barauni-Bachhwara including Barauni Yard Remodeling (approx. 16 Kms.), Carrying out detail Engineering survey including Leveling, alignment, soil exploration, preparation of plans, L-section, GA plans of Bridges etc., bill of quantities and other related ancillary activities in connection with preparation of DPR in Samastipur division.

Final Location Survey (FLS) for Doubling Line between Narkatiaganj-Raxaul-Sitamarhi-Darbhanga & Sitamarhi-Muzaffarpur section (approx. 255.5 Kms.) and FLS for 3rd & 4th line between Barauni-Bachhwara including Barauni Yard Remodeling (approx. 16 Kms.), Carrying out detail Engineering survey including Leveling, alignment, soil exploration, preparation of plans, L-section, GA plans of Bridges etc., bill of quantities and other related ancillary activities in connection with preparation of DPR in Samastipur division. is an East Central Railway (ECR) infrastructure work in Bihar, executed by M/S Matrix Gio Solution Pvt. Ltd.. The tendered cost of the work is ₹2.40 Cr, and it is currently Overdue with physical progress recorded at 60%.

Railway works like this — road over/under bridges, station buildings, track linking and allied civil works — are monitored by the CAO (Construction) office of East Central Railway. Other works by the same agency are listed below.