Bangalore Metro Expansion 2026: Complete Details of Phase 2 and Phase 3

Bangalore Metro, officially known as Namma Metro, is undergoing a major expansion through Phase 2, Phase 2A, Phase 2B and Phase 3. These projects are designed to connect important residential areas, IT corridors, industrial zones, commercial centres and Kempegowda International Airport.

As of November 2026, Phase 2 has reached an advanced stage, with several extensions and new corridors already operational. The Pink Line elevated section between Kalena Agrahara and SG Palya started passenger services on 14 November 2026. The remaining underground Pink Line section is expected to open by mid-2027. The Blue Line, which includes Phase 2A and Phase 2B, is expected to become fully operational by mid-2028 according to the JICA project update.

Phase 3 is a separate expansion project covering approximately 44.65 km and 31 stations. It includes the JP Nagar 4th Phase to Kempapura corridor and the Hosahalli to Kadabagere corridor. Another proposed project, Phase 3A, is planned between Sarjapur and Hebbal, subject to further approval.

1. Bangalore Metro Phase 2: Complete Project Details

Bangalore Metro Phase 2 expands the existing Purple Line and Green Line and introduces two important new corridors: the Yellow Line and Pink Line. The project connects several areas that previously had limited direct metro access.

The Comptroller and Auditor General (CAG) report for 2026 records Phase 2 at 72.09 km, comprising 58.30 km of elevated route and 13.79 km of underground route, with 61 stations. The report lists a sanctioned cost of ₹30,695.12 crore. Project scope and reported figures may vary between government documents and revisions.

Phase 2 Major Corridors

Pink Line: Kalena Agrahara to Nagawara

The Pink Line is approximately 21.26 km long and includes 18 stations. It consists of a 7.5 km elevated section and a 13.76 km underground section.

The elevated section between Kalena Agrahara and SG Palya started passenger operations on 14 November 2026. It includes six stations: Kalena Agrahara, Hulimavu, Bilekahalli-IIMB, NS Palya-JP Nagar 4th Phase, Jayadeva Hospital and SG Palya.

The remaining underground section will connect the southern corridor with central and northern Bengaluru, ending at Nagawara. JICA expects this underground section to become operational by mid-2027.

Yellow Line: RV Road to Bommasandra

The Yellow Line connects RV Road with Bommasandra through important locations including BTM Layout, Central Silk Board and Electronic City. It provides metro connectivity to major IT and industrial areas in southern Bengaluru.

The line is operational and forms an important part of Phase 2. It also connects with the Green Line at RV Road and is connected with the Pink Line at Jayadeva Hospital.

2. Bangalore Metro Phase 2A: Central Silk Board to KR Puram

Phase 2A is the first major section of the Blue Line. It connects Central Silk Board with KR Puram along the Outer Ring Road. The corridor is important for employees travelling through Bengaluru technology and business districts.

Phase 2A Station List

The corridor is designed to improve access to the Outer Ring Road technology corridor. Central Silk Board provides interchange connectivity with the Yellow Line, while KR Puram connects with the Purple Line.

3. Bangalore Metro Phase 2B: KR Puram to Kempegowda International Airport

Phase 2B is the airport extension of the Blue Line. It is planned to connect KR Puram and the northern Bengaluru corridor with Kempegowda International Airport. The project is important for airport passengers, employees and people travelling between the city and Devanahalli.

The airport corridor is being developed in stages. The 2025-26 Karnataka Economic Survey describes the planned sections as Hebbal to Airport and KR Puram to Hebbal. The exact opening of individual sections depends on construction, testing and approvals.

Why Phase 2B Is Important

• Direct metro connectivity towards Kempegowda International Airport.
• Better public transport options for airport passengers and staff.
• Connectivity between northern Bengaluru and major employment centres.
• Interchange opportunities with other metro corridors.
• Potential reduction in dependence on road transport for airport journeys.

4. Bangalore Metro Phase 2A and 2B: Latest Progress in 2026

According to a Lok Sabha reply dated 6 August 2026, the combined 58.19 km Phase 2A and 2B project had achieved 72.50% physical progress and 70.17% financial progress as of 30 June 2026.

The government also stated that ₹26,447.27 crore had been released by the Union Government to BMRCL for Phase 2, Phase 2A/2B and Phase 3 together, as of 30 July 2026. This is a combined funding figure and should not be interpreted as funding for Phase 2A/2B alone.

5. Bangalore Metro Phase 3: Complete Project Details

Bangalore Metro Phase 3 is a major expansion approved by the Union Cabinet in August 2024. It includes two elevated corridors covering 44.65 km and 31 stations. The project has an approved completion cost of ₹15,611 crore.

The main objective is to improve connectivity in western and southern Bengaluru, including JP Nagar, Peenya, Magadi Road, the Outer Ring Road West corridor and Kempapura.

Phase 3 Corridor 1: JP Nagar 4th Phase to Kempapura

The first corridor is approximately 32.15 km long and runs through the Outer Ring Road West area. It is designed to connect southern Bengaluru with northern and north-western areas.

The corridor is expected to improve connectivity for areas around JP Nagar, Kamakya, Mysore Road, Sumanahalli, Peenya, BEL Circle, Hebbal and Kempapura. The Union Cabinet project announcement describes this corridor as having 22 stations.

Phase 3 Corridor 2: Hosahalli to Kadabagere

The second corridor is 12.50 km long and follows Magadi Road. It will connect Hosahalli with Kadabagere and improve public transport access for western Bengaluru neighbourhoods.

The corridor has nine planned stations under the approved project structure. It will also provide interchange opportunities with existing and planned public transport facilities.

Phase 3: Areas Expected to Benefit

• JP Nagar and surrounding southern Bengaluru neighbourhoods.
• Peenya Industrial Area and nearby manufacturing clusters.
• Outer Ring Road West and major employment locations.
• Hebbal and Kempapura connectivity through Corridor 1.
• Magadi Road and western Bengaluru through Corridor 2.
• Educational institutions, industrial units and commercial centres along the corridors.

6. Bangalore Metro Phase 3 Construction Status in 2026

Phase 3 has received Union Cabinet approval, but approval does not mean that the entire corridor is already under active construction. The Karnataka Economic Survey 2025-26 reported that preliminary activities such as land acquisition, tree clearance and utility shifting were in progress.

During 2026, the proposed double-decker design also became an important factor in project execution. The original plan included an elevated road and Metro structure on parts of the corridor. Later reporting in September 2026 indicated that BMRCL was reviewing the design and considering fresh civil-work tenders after reducing the double-decker arrangement to around 11 km.

This reported design revision means that construction packages, costs and timelines may be updated. Readers should distinguish the approved 44.65 km project from the latest tender and design status. A final revised project schedule should be confirmed through official BMRCL or government announcements.

7. Bangalore Metro Phase 3A: Sarjapur to Hebbal Proposed Corridor

Phase 3A is a separate proposed corridor intended to connect Sarjapur with Hebbal through important areas of Bengaluru. The Karnataka Economic Survey 2025-26 describes a planned route of approximately 36.59 km, including elevated and underground sections.

Phase 3A should not be confused with the already approved Phase 3 project. Its final approval, funding, station list and construction timeline require separate confirmation.

8. Bangalore Metro Phase 2 vs Phase 3 vs Phase 3A

The Phase 2 length and station count in this comparison follow the 2026 CAG report. Phase 2A/2B figures are taken from the 2026 Lok Sabha reply and Karnataka Economic Survey. Different government documents may report different figures where project scope or revisions differ.

9. How Metro Expansion Will Benefit Bengaluru

Better IT Corridor Connectivity

The Blue Line is planned to improve connectivity along the Outer Ring Road technology corridor, including Bellandur and Marathahalli. This can make daily commuting easier for employees travelling to major technology parks.

Airport Connectivity

Phase 2B will provide a metro connection towards Kempegowda International Airport. This will create another public transport option for airport passengers and workers.

Connectivity for Southern Bengaluru

The Pink Line and proposed Phase 3A corridor are expected to improve access to areas around Bannerghatta Road, Sarjapur, Koramangala and Hebbal.

Industrial and Residential Connectivity

Phase 3 is designed to connect Peenya, Magadi Road and other western Bengaluru areas with the wider metro network. Better connectivity can support residents, businesses and industrial employees.

10. Official Sources and Reference Links

For project approval, construction progress and operational updates, readers should use official government and project authority sources.

• Bangalore Metro Rail Corporation Limited (BMRCL) - Official metro authority website.
• Press Information Bureau: Phase 3 Cabinet Approval - Official approval, corridors, stations and project cost.
• Lok Sabha Reply dated 6 August 2026 - Phase 2A/2B progress and government funding information.
• JICA Pink Line Project Update, 13 November 2026 - Pink Line opening and expected timelines for the underground section and Blue Line.
• Government of Karnataka - State government announcements and infrastructure information.

Frequently Asked Questions (FAQs)

Conclusion

Bangalore Metro Expansion 2026 includes several major projects that will improve connectivity across Bengaluru. Phase 2 is adding new routes through the Yellow and Pink Lines and extensions to existing corridors. Phase 2A and Phase 2B are developing the Blue Line and airport connection. Phase 3 will add two approved corridors covering 44.65 km and 31 stations.

The proposed Phase 3A corridor between Sarjapur and Hebbal is another important future project, but it should not be treated as an already approved construction project. For passengers and residents, the most important upcoming milestones are the remaining Pink Line underground section, the Blue Line and the progress of Phase 3 construction.

Readers should follow BMRCL and official government announcements for revised project costs, station lists, construction schedules and confirmed opening dates.