 "metro systems")
Services were briefly delayed on the Blue Line on Sunday due to fault in a train at the Mandi House Metro Station, officials said.
Blue Line connects Dwarka Sector-21 in Delhi and Electronic City in Noida, with a branch line at Yamuna Bank that connects to Vaishali in Ghaziabad.
"Minor delay for about 15 mins was there in services to rectify a fault in a train at Mandi House (going towards Vaishali) around 3.45 pm. Services are running normally after that," a senior DMRC official said.
There was "not much bunching or impact" as frequency remains low on Sundays, he said.
The Blue Line had suffered a major technical snag on June 9, when commuters, largely office-goers, were stranded for over two hours.
On June 6, commuters on the same line suffered an hour-and-a-half-long delay as services came down with a technical snag caused by a bird hit.
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