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Namma Metro Blue Line Begins Trial Runs: When Will Silk Board, KR Puram and the Airport Line Open?

Trial runs have begun on the 58 km Blue Line; Silk Board to KR Puram is expected by mid-2027, the airport section by September 2027 and the full line by March 2028.

Vikas H S By · News Desk · · Updated
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Namma Metro Blue Line viaduct under construction, Bengaluru
Photo: Sameer2905, CC BY-SA 4.0, via Wikimedia Commons

Quick answer

Trial runs have started on the Namma Metro Blue Line, the 58.19 km Outer Ring Road–Airport corridor. A test train has run from the Baiyappanahalli depot to KR Puram and on to Doddanekundi, as reported on 11 November 2026. Safety inspections follow and take a few months. The Silk Board to KR Puram section is expected by mid-2027, Hebbal to the airport by September 2027, and the full line by March 2028.

Published 12 November 2026 · Data: BMRCL and the Karnataka government, as reported by IANS

Three sections, three opening dates

SectionLengthStationsExpected opening
Phase 2A: Central Silk Board to KR Puram (Outer Ring Road)19.75 km13Mid-2027
Phase 2B: Hebbal to Kempegowda International AirportPart of 38.44 kmPart of 16 + 3 futureSeptember 2027
Phase 2B: KR Puram to Hebbal, via Kalyan Nagar and NagawaraPart of 38.44 kmPart of 16March 2028
Total corridor 58.19 km. Dates as stated by the government in November 2026.

Phase 2A runs along the Outer Ring Road through HSR Layout, Agara, Iblur, Bellandur, Kadubeesanahalli, Marathahalli and Doddanekundi to KR Puram, where it meets the Purple Line. Phase 2B continues through Kasturi Nagar, HRBR Layout, Kalyan Nagar, HBR Layout and Nagawara to Hebbal, then north through Jakkur, Yelahanka and Bagalur Cross to the airport. The line will use driverless trains, with luggage space for airport passengers.

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Minister Krishna Byre Gowda said the trials will continue for some time, and that work near Central Silk Board is still under way.

From HSR to the airport: the stretches and projects on the line

The Blue Line has been the main selling point for North Bengaluru and Outer Ring Road projects for several years, and its dates have moved more than once. Trial runs are a real milestone, but treat opening dates as targets: if a brochure prices in the metro, check how far your tower is from the nearest station, and whether you would still buy if the line opened a year later than promised.

Frequently asked questions

Has the Bengaluru Blue Line metro started?

Trial runs began in November 2026 on the Phase 2A main line, with a test train running from Baiyappanahalli depot to KR Puram and Doddanekundi. Passenger services have not started.

When will Silk Board to KR Puram metro open?

The Central Silk Board to KR Puram section (Phase 2A, 19.75 km, 13 stations) is expected by mid-2027.

When will the airport metro in Bengaluru open?

The Hebbal to Kempegowda International Airport section is expected by September 2027, and the full Blue Line including KR Puram to Hebbal by March 2028.

How long is the Blue Line?

58.19 km in total: 19.75 km in Phase 2A and 38.44 km in Phase 2B.

Where does the Blue Line connect with other metro lines?

At KR Puram with the Purple Line, at Central Silk Board with the Yellow Line, and at Nagawara with the Pink Line when that section opens.

Will the Blue Line trains be driverless?

Yes. The corridor will use driverless trains with luggage-friendly facilities for airport passengers.

Sources

BookNewProperty is an independent research site. This report summarises the sources above; figures are as published by them on the dates shown.

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Vikas H S
Vikas H SNews Desk · BookNewProperty

Vikas H S is the Project Reviewer at BookNewProperty. He reviews every project page against the developer and the state RERA portal, and writes the site's developer results and market news in plain language for first-time buyers.

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