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15h ago

Namma Metro Blue Line Begins Mainline Trial Runs

Outstanding signalling work and a small amount of track and station finishing will decide when passenger services start.

Karnataka to urge Centre to consider greater funding support for Namma Metro and mechanisms to reduce foreign exchange risks, as Bengaluru’s growing infrastructure requirements called for a more equitable Centre-State partnership.
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Overview

  • Trial runs on the 58.19 km Blue Line began in early November, with trains moved from Byappanahalli toward KR Puram and Doddanekundi as BMRCL expands mainline testing.
  • BMRCL has been energising traction systems since late October, progressively powering 33 kV cables and the third rail between Baiyappanahalli and Marathahalli to support integrated runs.
  • Signalling integration remains the key technical hurdle and about 2 km of track work plus finishing at some stations still need completion before kinematic testing and safety approvals.
  • Officials are keeping a phased opening timetable, with Phase 2A (Central Silk Board–KR Puram) targeted for mid‑2027 and the full airport link currently aimed for around March 2028.
  • The line will use driverless‑capable, luggage‑friendly trains, link major IT hubs along the Outer Ring Road to Kempegowda International Airport, and is expected to boost local commercial and rental demand.