By the time the snag was rectified after almost two hours, large crowds had gathered at platforms all along the busy route, linking Dwarka in west Delhi with Noida and Vaishali in Uttar Pradesh.
The 49-km Blue Line covers 43 stations in some of the most populous parts of the capital and is the longest in the network.
"The services ran in three short loops following the technical problem in the overhead electrification line," a metro official said.
The crowds were maximum at the Rajiv Chowk interchange, the busiest of all metro stations.
--IANS (Posted on 16-08-2013)