Technical Result for the Project of Consultancy Services for Authority’s Engineer for Supervision of Construction, Operation and Maintenance of 2-lane Bi-Directional Silkyara Bend –Barkot Tunnel with escape passage including approaches on Dharasu- Yamunotri section between Ch. 25.4 km and Ch. 51.0 km falling along NH-134 (old NH-94) in the State of Uttarakhand. Dated : 18-09-2018