Ministry of Road Transport & HighwaysIndia

Status of improvement and upgradation of National Highways in North Sikkim

The present status of improvement, upgradation and widening along with the cost of the project and implementing agencies for National Highway (NH) in North Sikkim which shares international borders with China is annexed at Annexure ‘ A’.



SL No. Name of Work Status
1. Stage Strengthening of selected stretches between km 32+450 to km 50+680 and km 51+330 to km 58+097 of Gangtok Mangan section of NH -310 A


  1. Physical Progress: 53.7%
  2. Date of Commencement:           01/10/2020
  3. Date of Completion:30/09/2022
  1. Implementing Agency: State PWD
2. Stage Strengthening of selected stretches between km 0+000 to km 32+000, length 11.490 km of Gangtok Mangan section of NH – 310 A



  1. Physical Progress:42%
  2. Date of
  3. Commencement:           03/03/2021
  1. Date of Completion: 30/09/2022
  1. Implementing Agency: State PWD
3. Widening to 2 lane with paved shoulder from Gangtok to Mangan of NH-310 A


DPR for widening to 2 lane with paved shoulder from Gangtok to Mangan is yet to be awarded. The Cost will be finalized after preparation of DPR. State PWD is the implementing agency.


4. Mangan – Kodyong – Chungthang – Lachung Yumthang-Yume – Samdong – Border (NH-

310A) for total design length of 106 Km.

 These National Highways are proposed to be developed from SL specification to NHDL specification with Paved Shoulder. The  preparation of DPR for both the Highways are in very advanced stage. The tendering action for a design length of 27.476 km for PackageI(Mangan – Kodyong – Chungthang) is under progress. The tendering action for remaining stretch is delayed mainly due to pending Statutory Clearances like Land Acquisition, Forest Clearances, Wildlife etc. as the road in these stretch passes through Eco-Sensitive zone and Protected Area of Kanchenjunga National Park and Shingba Rhododendron Sanctuary. Total Capital outlay for upgradation/development of 222 Km Highway in North Sikkim (NH-310A and NH-310AG) as per DPR is     Rs.5486 Crs. Border Road Organisation ( BRO) is the implementing agency.



This information was given by Union Minister for Road Transport and Highways, Shri Nitin Gadkari in a written reply in the Rajya Sabha.

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Comment moderation is enabled. Your comment may take some time to appear.

Back to top button