- Delhi Metro blames "human error, negligence", orders high-level inquiry
- Crash took place because the train's brakes were disengaged
- Magenta line will slash travel between south Delhi and Noida to 19 mins
Two coaches were badly damaged after the train, which was empty, went through a wall at the Kalindi Kunj depot and barely missed crashing to the ground. The incident took place around 3.40 pm.
"A trial train was moved from the workshop without testing the brake system as a result of which, while the train was moving up the ramp for washing, it rolled back and hit the adjacent boundary wall," the Delhi Metro Rail Corporation said in a statement.
In photos, a portion of the engine jutted out of the wall of the station.
PM Modi is scheduled to inaugurate the Kalkaji Mandir-Botanical Garden stretch of the Magenta line, which is to run between Delhi and Noida. The Magenta line promises to slash travel between south Delhi and Noida to just 19 minutes.
The 12.64-km section was granted safety approval just last month.
Delhi Metro's Managing Director Mangu Singh said operations on the Magenta Line were "absolutely safe", with a high level of automation.
"Today's incident was manual error during maintenance and has nothing to do with the trials or passenger safety during future operations," said Mr Singh.
The new Metro line will have automated platform screen doors at every station, just like jubilee line of the London tube, say officials.