A 9.6‑km metro line is being planned to connect the fast‑growing suburbs of Thane, Mumbra, Diva and Dombivli. The project will integrate suburban rail, the Mumbai‑Ahmedabad high‑speed rail corridor and the upcoming Metro Line 12, promising smoother commutes across the region.

Key Takeaways

  • 9.6 km proposed alignment
  • 7‑8 stations in the tentative plan
  • Estimated cost of around ₹4,500 crore

Project Overview

The Maharashtra government is drafting a 9.6‑km metro corridor that will run underground from Thane to Mumbra and then rise to the surface through Diva to Kopar, ultimately serving Dombivli. The line aims to relieve the heavily congested Thane‑Diva‑Dombivli stretch of the suburban railway network.

Historical Background

Over the past two decades, the western suburbs of Mumbai have witnessed exponential growth in population and travel demand, turning the Thane‑Diva corridor into one of the busiest rail segments in the country. The upcoming Mumbai‑Ahmedabad High‑Speed Rail (HSR) station at Diva further underscores the need for an integrated transport hub.By linking three major networks—suburban rail, HSR and the future Metro Line 12—the proposed corridor promises a multimodal solution that could reshape daily commuting patterns.

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Key Interchanges

Key nodes include Thane Junction (suburban rail + Thane Integral Ring Metro), Mhatardi/Diva (Mumbai‑Ahmedabad HSR), and Sonarpada (Metro Line 12 connecting Kalyan to Taloja). These interchanges will enable seamless transfers across modes.

Why This Matters

BozokMedia analysis shows that a unified network will cut travel times by up to 30 % and stimulate economic activity along the corridor, positioning the region as a model for integrated urban mobility.

An integrated transport hub will transform regional mobility and unlock new growth opportunities.
Did You Know?: Diva will be the first Indian city where a high‑speed rail station directly interfaces with both suburban and metro services.

Frequently Asked Questions

Q1: When is the Detailed Project Report (DPR) expected?
A1: RITES is slated to deliver the DPR by September 2026, with construction likely commencing in early 2027.

Q2: Is the extension to Kopar confirmed?
A2: The Kopar extension is still under study; the original plan terminated the line at Diva.