Consultancy services for Authority’s Engineer for Supervision of: (i) 4-Laning of NH-37 from Nagaon By-pass to Teliagaon (km 278.600 to km 288.600) in the state of Assam under SARDP-NE Phase-A on EPC mode. (ii) 4-Laning of NH-37 from Teliagaon to Rangagar