Consultancy Services for for Preparation of Detailed Project Report for Up gradation to 4 lane 2L PS of Parour to Chauntra from Km 100 840 to Km 140 625 and Chauntra to Padhar from Km 140 625 to Km 180 00 of Pathankot Mandi section of NH 154 in the state of Himachal Pradesh through BOT Hybrid Annuity EPC mode