Four key corridors set to open this year, but delays and cost overruns continue; at least four Metro corridors have been targeted for completion by December 2025
Pic/Satej Shinde
The Mumbai Metropolitan Region Development Authority (MMRDA) is constructing an extensive Mumbai Metro network of 12 lines, spanning 337.1 km across the Mumbai Metropolitan Region (MMR). Of these, four lines covering 58.9 km (including the 12.44 km underground Aqua Line 3) are operational, while eight lines covering 165.7 km are at various stages of construction, with the remaining corridors still in the planning and tendering phase. At least four Metro corridors have been targeted for completion by December 2025.
ADVERTISEMENT
Mumbai Metro Network: Status update
Yellow Line 2B
Route: DN Nagar (Andheri) – Mandale (Mankhurd)
Cost: Rs 10,986 crore
Status: 83% complete; track work and finishing ongoing
Pic/Rane Ashish
Red Line 7A/9
Route: Andheri (E) – CSMIA and Dahisar (E) – Mira Bhayander
Cost: Rs 6607 crore
Status:
. Red Line 9 (Dahisar-Mira Bhayander) – 96% complete
. Phase 1 (Dahisar Kashigaon, 4.5 km, 4 stations) – December 2025
. Phase 2 (Kashigaon-Mira Bhayander, 4.6 km, 4 stations) – December 2026
. Red Line 7A (Andheri (E)-CSMIA, 13.5 km) – 56% complete
Pic/Atul Kamble
Green Line 4
Route: Wadala – Thane (Kasarvadavali)
Cost: Rs 14,549 crore
Status: 79% complete; divided into three phases
Completion targets:
. Kasarvadavali to Cadbury Junction (7.8 km, 8 stations) – December 2025
. Cadbury Junction to Gandhi Nagar (10.6 km, 11 stations) – December 2026
. Gandhi Nagar to Wadala (final stretch, 11 stations) – November 2027
. Original cost: Rs 2632 crore
. Original deadline: July 2021
Pic/Rajendra B. Aklekar
Green Line 4A
Route: Kasarvadavali – Gaimukh
Cost: Rs 949 crore
Status: 89% complete
Completion target: December 2025
. Original cost: Rs 440.84 crore
. Original deadline: April 2025
Pic/Satej Sinde
Aqua Line 3
. Status: Mumbai’s first underground Metro is 94.77%
. Phase 2 (BKC – Worli, 33.5 km) set to open mid-April 2025
Pic/Nimesh Dave
Pink Line 6
Route: Swami Samarth Nagar (Lokhandwala) – Vikhroli
Cost: Rs 6716 crore
Status: 78% complete; depot construction ongoing at Kanjurmarg
Completion target: December 2026
Pic/Rajendra B. Aklekar
Orange Line 5
Route: Thane – Bhiwandi – Kalyan
Cost: Rs 8417 crore
Status: Divided into two phases
Completion targets:
. Thane: Bhiwandi (11.9 km, 6 stations) – December 2026 (94.6% complete)
. Bhiwandi: Kalyan – June 2029
. Original deadline: March 2022
Orange Line 12
Route: Kalyan – Taloja
Stations: 19
Cost: Rs 5865 crore
Status: 6.5% complete
Completion target: December 2027
Green Line 10 (extension)
Route: Gaimukh – Shivaji Chowk (Mira Road)
Cost: Rs 4476 crore
Status: Under tendering
Deadline: March 2030
According to MMRDA data, the four corridors set to open include
. 5.4 km stretch of five stations between Mandale and Chembur on Yellow Line 2B
. Kasarvadavali to Gaimukh (Line 4A)
. Kasarvadavali to Cadbury Junction (a part of Line 4)
. 9.77 km stretch between BKC and Acharya Atre Chowk (Aqua Line 3), expected to be operational by mid-April 2025, subject to clearance from the Commissioner of Metro Railway Safety (CMRS).
337.1 KM
Length of Mumbai Metro network
Public reactions & expert opinions
Anil Galgali Activist
‘Several Metro corridors have missed deadlines, leading to cost escalations. The MMRDA and state government must prioritise and complete these projects without further delays.’
Ashok Datar Transport analyst
‘With Metro construction delayed, BEST buses must step in. The Metro will take at least two more years, but if BEST adds 10 lakh daily riders, it can bridge the gap with more electric buses. Right now, public transport needs urgent reinforcement.’
Harish T Poojary Commuter
‘The speed of Metro construction in Mumbai must increase. Years of work, barricaded roads, and endless traffic jams have become unbearable. The Metro should have been ready 20 years ago, and now that work has started, it must be completed on time.’
MMRDA Commissioner
Mumbai in Minutes’ is no longer just a dream — it is becoming a reality, thanks to the rapidly growing Mumbai Metro network. With multiple corridors crisscrossing the city, what once took hours will now take mere minutes. The partial commissioning of Metro Lines 2B, 4–4A, and 9 marks a significant leap in this journey of transformation.
From Mira Bhayander to the eastern suburb and Thane will be getting their first metro. Areas once considered distant are now being drawn closer through world-class metro connectivity. This is not just infrastructure; it’s a movement toward safer, cleaner, faster, and more inclusive urban travel. The future of commuting in Mumbai has arrived — and it runs on the tracks of the Metro.” — Dr. Sanjay Mukherjee, IAS, Metropolitan Commissioner, MMRDA
Other lines under development
. Green Line 11 (Wadala – SP Mukherjee Chowk, 12.7 km) is now under MMRCL
. Gold Line 8 (Airport Road – Navi Mumbai Airport, 35 km) DPR to be prepared by CIDCO under PPP model
. Magenta Line 14 (Kanjurmarg – Badlapur, 45 km) draft DPR received; tenders issued for environmental impact report
Subscribe today by clicking the link and stay updated with the latest news!" Click here!
