If you think Metro Line 7 (Dahisar East to Gundavali) has made commuting smoother, get ready for something even better, Mumbai Metro Line 7A, the red line extension from Gundavali to Chhatrapati Shivaji Maharaj International Airport (CSMIA) Terminal 2.
This link will give Mumbai’s northern suburbs their first seamless, change-free metro ride straight to the airport.
The Route & Stations
Total length: 3.42 km
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Elevated section: 0.94 km along Western Express Highway
Underground section: 2.11 km under Sahar Elevated Road & key utilities
Stations:
Airport Colony (elevated)
CSMIA Terminal 2 (underground, connected to Line 3 Aqua)
Travel Time: Dahisar to T2 in Under 50 Minutes
Currently, road travel from Dahisar to the airport during peak hours can take up to 90 minutes. Once operational (target: December 2026), Metro Line 7A will reduce that to around 43–48 minutes, with:
Dahisar East to Gundavali (Line 7): ~35–38 mins
Gundavali to CSMIA (Line 7A): ~8–10 mins
Construction Status & Cost
Total cost: ₹1,998 crore for Line 7A
Part of Red Line package (Lines 7 + 7A + 9): ₹6,607 crore
Progress (as of July 2025):
61% overall completion
100% tunnelling finished (1.65 km by TBM Disha)
Elevated, ramp & station structures 82–100% complete
Capacity & Ridership
8-coach trains, 2,352 passengers/trip
Red Line projected ridership by 2031: 11+ lakh/day
Benefits for Office-Goers & Travellers
Cuts airport commute from Mira-Bhayandar, Dahisar, and Andheri East by up to an hour during peak hours
Direct connection to business corridors without taxi/bus delays
Reduces WEH congestion & road travel uncertainty
Predictable timing for frequent flyers, corporate staff & directors
Integration with Other Metro Lines
Metro Line 7: at Gundavali
Metro Line 3 (Aqua): at CSMIA Terminal 2
Metro Line 8 (proposed Gold Line to NMIA): at Terminal 2
Interchanges with Metro Lines 1, 2A, 6 via Andheri & JVLR
Planned concourse-level interchanges for minimal walking
Ticketing & Public Transport Links
Standard AFC: smart cards & QR tokens
Likely fare: ₹20–₹30 for the 3.4 km ride
Public transport links:
Gundavali/Andheri East: Western Railway, Metro 1 & 2A, buses
T2: Direct access to airport & future NMIA metro (Line 8)
