Alignment of Bengaluru's Tunnel road
Bengaluru’s Tunnel Road tender gets fourth extension amid design revisions
Bengaluru:
The tender submission deadline for Bengaluru’s ambitious 16.75-km North–South Tunnel Road project has been extended for the fourth time, marking yet another delay in the city’s most high-profile traffic decongestion initiative.
In a fresh Corrigendum-07, issued by Bengaluru Smart Infrastructure Limited (BSIL), the new deadline for bid submission has been extended from October 31, 2025, to November 15, 2025.
The ₹17,800-crore project proposes twin-tube underground corridors linking Hebbal and Central Silk Board, with 16 entry and exit ramps. Envisioned under a Public-Private Partnership (PPP) model, the government expects 60% private investment.
Officials said the latest extension follows “requests from participating bidders” who sought additional time to finalise their submissions, reflecting ongoing interest from large infrastructure firms despite the project’s complexity.
Timeline of Tender Extensions
| Corrigendum No. | Original / Previous Deadline | Revised Deadline | Date of Issuance |
|---|---|---|---|
| Corrigendum-01 | June 30, 2025 | July 15, 2025 | June 2025 |
| Corrigendum-02 | July 15, 2025 | August 10, 2025 | July 2025 |
| Corrigendum-04 | August 10, 2025 | September 20, 2025 | August 2025 |
| Corrigendum-07 (current) | October 31, 2025 | November 15, 2025 | November 2025 |
(Based on official updates from Bengaluru Smart Infrastructure Ltd)
Despite multiple deadline extensions, the tunnel road continues to remain a contentious yet closely watched project, with debates over its feasibility, environmental cost, and funding structure.