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Blog / 02 May 2025

Shillong–Silchar Greenfield Corridor project

Context:

The Union Cabinet recently approved the construction of a 166.8 km-long, 4-lane high-speed corridor along National Highway-6 (NH-6), under Shillong–Silchar Greenfield Corridor project, connecting Mawlyngkhung near Shillong in Meghalaya to Panchgram near Silchar in Assam.

About the Shillong–Silchar Greenfield Corridor project:

The project will pass through the challenging terrain of the Northeastern region, incorporating advanced engineering solutions to overcome geographical obstacles. It will include the construction of:

  • 19 major bridges
  • 153 minor bridges
  • 326 culverts
  • 22 underpasses
  • 26 overpasses
  • 34 viaducts

The project is expected to be completed within three years, with a cost estimation of ₹22,864 crore. Of the total 166.8 km stretch, 144.8 km will lie in Meghalaya, while the remaining 22 km will be in Assam.

The strategic project will be implemented under the Hybrid Annuity Mode (HAM), a form of Public-Private Partnership (PPP) at a capital cost of ₹22,864 crore.

The project aligns with PM Gati Shakti National Master Plan and Atmanirbhar Bharat.

Significant benefits of the Corridor: 

·         Journey Time Reduction: Travel time between Shillong and Silchar will decrease from 8.30 hours to 5 hours.

·         Distance Reduction: The distance between Guwahati and Silchar will shrink by 25%.

·         Increased Vehicular Speed: Average vehicular speeds are expected to double, improving traffic flow and efficiency.

·         Linking Key States: The corridor will enhance connectivity between Meghalaya, Tripura, Mizoram, and Manipur.

·         Improvement in Freight Movement: It will become the shortest and fastest route for trucks and heavy vehicles traveling to Silchar and further east, boosting trade and logistics in the region.

Strategic Importance for the Northeast:

  • Silchar as a Gateway: Silchar serves as the entry point for connecting Mizoram, Tripura, and Manipur, as well as Assam's Barak Valley. The new corridor will facilitate better access to these regions.
  • Regional Economic Growth: The enhanced infrastructure will promote economic development, improve access to goods and services, and support regional trade and connectivity.

Conclusion

The construction of this high-speed corridor is poised to revolutionize transportation within the Northeast, making travel more efficient while fostering economic development. This strategic infrastructure project is expected to enhance inter-state connectivity and regional development, addressing both passenger and freight mobility needs.