Bengaluru's Green Line runs in a short loop for 45 minutes after a power breakdown

Bengaluru's Green Line was disrupted on Tuesday morning by a power breakdown, with trains running in a short loop between Silk Institute and Yeshwanthpur before full services were restored at 8.45 am. The disruption lasted a little under three-quarters of an hour.

In a BMRCL statement, the authority said Green Line services had been operating as a short loop between Silk Institute and Yeshwanthpur from 8 am because of the power failure, and that service between Yeshwanthpur and Madavara was suspended briefly. It added that technical teams worked on a war footing to restore the supply.

• 08:00 — short loop in operation between Silk Institute and Yeshwanthpur.
• During the fault — Yeshwanthpur to Madavara suspended.
• 08:45 — power restored, normal revenue services resumed across the entire Green Line.

Where the line actually breaks

The Green Line runs from Madavara in the northwest to Silk Institute in the south, crossing most of the city, and the Yeshwanthpur–Madavara segment is the northern approach to the corridor that serves the airport-side and north Bengaluru traffic. A suspension there is not a shuttle replacement for a peripheral branch; it removes the northern end of the line from the network entirely for the duration.

Forty-five minutes is short by the standards of the outages Bengaluru commuters have learned to plan around. It is also long enough to force a substitution, because the corridor has no parallel metro route — the practical alternative for most of those passengers is the elevated Yellow Line, which reaches different parts of the city and not the same ones.

The authority closed its statement by thanking commuters for their patience. For a system carrying this many people every working morning, the ordinary test of resilience is not whether the failure happens but how long the loop runs, and on Tuesday the answer was forty-five minutes.