Which metro lines open next in India? This calendar tracks the metro sections that are ready to open, in trial runs, or under construction with an official or reported target, from Bengaluru, Chennai, Delhi, Kolkata, Mumbai and Pune. Each entry links to its project page with stations, maps and the latest news.
Ready to open
Safety inspection done or authorised; waiting for the launch date.
- Awaiting inauguration, no date announcedPune Metro Line 3 Maan to R K Laxman Museum Balewadi, plus five stations to District Court · 17 stations, 13 km CMRS provisional authorisation on 23 July 2026; trains running without passengers.
- Late 2026Bengaluru Metro Pink Line Kalena Agrahara to Tavarekere (elevated) · 6 stations, 7.5 km CMRS inspection held 6 to 8 October 2026; authorisation pending.
In trial runs
Trains running for tests and signalling checks before the safety inspection.
- Late 2026 (MMRDA target)Mumbai Metro Line 4 Gaimukh (Line 4A) to Cadbury Junction · 10 stations, 10.5 km Trial runs; RDSO certification on 2 June 2026; CMRS clearance pending.
- December 2026 (RVNL and Metro Railway target)Kolkata Metro Orange Line Beleghata to IT Centre (Sector V) · 3 stations Trial runs and CBTC signalling tests since 10 October 2026; CRS clearance pending.
- Not announced (December 2026 cited in reports)Mumbai Metro Line 9 Kashigaon to Netaji Subhash Chandra Bose Udyan · 4 stations, 5.8 km Signalling integration tests done in September 2026; awaiting trials and CMRS approval.
Targeted for the rest of 2026
Under construction with an official or reported target before the end of 2026.
- End of 2026 (DMRC)Delhi Metro Magenta Line Krishna Park Extension to Deepali Chowk · 6 stations Phase 4; Peeragarhi station civil work about 90% done (October 2026).
- December 2026 (DMRC target)Delhi Metro Golden Line Tughlakabad to Sangam Vihar · 4 stations, 8.4 km First section of the Golden Line.
- End 2026 or January 2027 (Maha Metro)Pune Metro Purple Line Range Hill station (Khadki to Shivaji Nagar) · 1 station Infill station on the open line, in final phase of work.
Targeted for 2027
Under construction with a 2027 target.
- Early 2027, after about four months of trialsChennai Metro Line 5 (Red Line) Koyambedu to Chennai Trade Centre (Nandambakkam) · 12 stations, 12 km Trial runs targeted from November 2026.
- Q1 2027Chennai Metro Line 5 (Red Line) Chennai Trade Centre to Alandur · 2 stations, 3.6 km CMRL plans to run the first Line 5 services up to Alandur.
- March to May 2027Bengaluru Metro Blue Line Central Silk Board to KR Puram · 13 stations, 19.75 km Trial runs targeted from 15 November 2026; all works except signalling complete.
- 2027Bengaluru Metro Pink Line Dairy Circle to Nagawara (underground) · 12 stations, 13.76 km Tunnelling complete.
- 2027Pune Metro Purple Line PCMC Bhavan to Bhakti Shakti Chowk (Nigdi) · 4 stations, 4.52 km About 75% of viaduct complete; track laying started (August 2026).
- 2027Chennai Metro Line 3 (Purple Line) Nehru Nagar to Siruseri SIPCOT II (elevated, OMR) · 19 stations, 19.1 km Elevated viaduct along OMR.
- 2027Mumbai Metro Line 4 Cadbury Junction to Bhakti Park (Wadala) · 24 stations
- 2027 (RVNL target, unconfirmed)Kolkata Metro Orange Line IT Centre (Sector V) to City Centre-2 · 9 stations
- September 2027 (revised August 2026)Bengaluru Metro Blue Line Hebbal to Kempegowda International Airport · 7 stations, 27.44 km Full Blue Line expected March 2028.
- End 2027 (RVNL target, unconfirmed)Kolkata Metro Orange Line City Centre-2 to Jai Hind Bimanbandar (airport) · 3 stations
- Late 2027 to early 2028Bengaluru Metro Blue Line KR Puram to Hebbal · 9 stations, 11 km Slowest section; Hebbal interchange works pending.
- 2027 to 2028Chennai Metro Line 5 (Red Line) Alandur to Sholinganallur · 15 stations
No date announced
Under construction or held up, with no official opening date.
- Not announced (earlier target December 2026)Mumbai Metro Line 7A Gundavali to CSMIA Terminal 2 · 2 stations, 3.42 km Elevated stretch near Airport Colony on hold pending an AAI height decision.
- No official dateMumbai Metro Line 2B Chembur to ESIC Nagar (D.N. Nagar) · 14 stations
- In phases after December 2026, no date announcedDelhi Metro Golden Line Sangam Vihar to Delhi Aerocity · 11 stations, 15.2 km
- No official dateDelhi Metro Magenta Line Majlis Park to RK Ashram Marg · 8 stations
How to read this calendar
Dates are the operator’s own target where one exists (for example DMRC, MMRDA or Maha Metro), or the date reported in the press where it is labelled as such. Metro openings often slip: a section first needs trial runs, then a safety inspection by the Commissioner of Metro Rail Safety (CMRS), then an inauguration date. We update the calendar as sections open or targets change.
For the full list of operational and planned networks, see metro rail projects in India.
Frequently asked questions
Which metro line opens next in India?
The sections closest to opening are the ones listed under “Ready to open”: they have passed or completed their safety inspection and are waiting for a launch date.
What has to happen before a metro section opens?
Trial runs and signalling tests, an inspection by the Commissioner of Metro Rail Safety, a safety authorisation, and then an inauguration date set by the government.
How often is this calendar updated?
Whenever a section opens or an operator changes its target. The “last checked” date at the top shows the latest review.