Archive · 31 Aug 2026
Mumbai Metro Line 7A Viaduct Faces Possible Reconstruction
Mumbai Metro Line 7A is being built to connect Andheri East with Mumbai’s airport.
Part of the line runs above the ground in Vile Parle East.
Engineers discovered that the equipment needed to power the trains requires more height than earlier approvals allowed.
The equipment needs about 2.5 extra metres.
This problem was found in 2025, after much of the construction was already finished.
Work on the affected section has been stopped while officials seek new approval.
They are trying to fix the problem without rebuilding the structure.
If that is not possible, a large part of the viaduct may have to be rebuilt and the line could open later.
A height mismatch may force reconstruction of part of Metro Line 7A’s viaduct in Vile Parle East.
The overhead equipment requires about 2.5 metres more height than allowed under existing AAI approvals.
The affected area includes about 1 kilometre of viaduct, a ramp and Airport Colony station.
The elevated viaduct was reported 100% complete and the ramp about 95% complete by February 2026.
MMRDA, Systra and AAI are seeking a technical solution; otherwise, work worth about Rs 250 crore could be at risk.
- Who
- The Mumbai Metropolitan Region Development Authority, Systra, the Airports Authority of India and other project consultants are involved.
- What
- A height-clearance problem could require reconstruction of part of Mumbai Metro Line 7A’s elevated viaduct.
- When
- The discrepancy was detected in 2025; project completion data cited in the report was current to February 2026.
- Where
- The affected section is in Vile Parle East, near the airport funnel zone, and includes Airport Colony station.
- Why
- The overhead electric equipment requires about 2.5 metres more height than permitted under existing AAI approvals.
- Metro line
- Metro Line 7A, an extension of operational Red Line 7
- Length
- 3.42 kilometres
- Route
- Andheri East to Chhatrapati Shivaji Maharaj International Airport
- Affected area
- About 1 kilometre of viaduct, including a ramp and Airport Colony station
- Height issue
- Overhead equipment requires approximately 2.5 metres of additional height
- Construction status
- The elevated viaduct was 100% complete and the elevated ramp was about 95% complete by February 2026
- Potential financial impact
- Construction work worth around Rs 250 crore could be at risk