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CentralRailwaysUnder ConstructionDelayed

Sivok-Rangpo New Rail Line

A tunnel-heavy rail link from Sivok in West Bengal to Rangpo in Sikkim, intended to connect Sikkim to the national rail network.

Estimated cost
₹12,000 cr
Reported spend
Not available
Announced
30 Oct 2009
Last verified
1 May 2026
Schedule check

Compared with the first announced target

The first rail link to Sikkim has crossed earlier target windows while tunnel and bridge works continue, so the project is tracked as delayed.

Delayed
First target
Dec 2023
Current target
Dec 2026
Revised target
Not listed
Public relevance

Sikkim residents, tourism, border logistics and strategic mobility toward the eastern Himalayan region

Timeline

3 events
30 Oct 2009
Project foundation

The rail link was taken up to provide Sikkim with direct rail connectivity.

1 Jan 2023
Tunnel breakthroughs reported

Railway and contractor updates reported progress on multiple tunnels and bridges.

31 Dec 2026
Tracked revised window

Completion continues to be tracked against revised implementation windows.

Risk notes

  • Himalayan geology and landslide exposure
  • High tunnel concentration
  • Strategic border-state execution complexity

Official/public sources

Use these links to inspect the underlying public sources for project details and updates.

Citation quality snapshot
Source mix
2 sources · Government
Verification freshness
Fresh

Source-linked record. Review the linked sources before relying on a claim.

Last source review was 46 days ago; still inspect linked sources before relying on any material claim.

Claim coverage check
Cost / funding
Review needed

Cost, funding or spend claims are visible; add/label an official budget, sanction, tender, award, DPR or financial update source.

Schedule / timeline
Review needed

Timeline and target-date claims are visible; add/label a source that specifically supports the first target, current target or revised completion claim.

Current status
Covered

At least one source label or source type appears to support the current project status or update claim.

Linked source labels: IRCON: project and rail infrastructure updates

Source specificity review needed

Some links are broad homepages, sections, or aggregators. They remain visible for transparency, but should be refreshed to exact releases, tenders, PDFs, dashboard pages or articles before using them as final evidence.

  • medium priority
    IRCON: project and rail infrastructure updates

    Generic homepage or section URL; prefer the exact project page, release, tender, PDF, order, dashboard view or article URL.

  • medium priority
    Northeast Frontier Railway official site

    Generic homepage or section URL; prefer the exact project page, release, tender, PDF, order, dashboard view or article URL.

Official sourceIRCON: project and rail infrastructure updatesPublisher/domain: ircon.orgNeeds exact sourceGovernment sourceNortheast Frontier Railway official sitePublisher/domain: nfr.indianrailways.gov.inNeeds exact source