Widening/Improvement to 4 (Four) Lane with Paved Shoulder from Ch.5.580km to Ch.25.633km (Design Ch.0.000km to Ch.17.737km) (Km 901.100 to Km 921.145 of old NH-31) for Package1 of Bilasipara- Guwahati Road (NH-17) (Section: Near Chirakuta to Near Mowatari, before Chapar Bypass) in the State of Assam on HAM Mode.