The Blue Line operates from Dwarka to Noida City Centre/Vaishali terminals.
"Due to the snapping of an overhead electrical wire near Indraprastha station, no services were available between Yamuna Bank and Barakhamba since 6.40 p.m.," said a statement from the Delhi Metro Rail Corporation (DMRC).
Train services were available in loops from Dwarka to Barakhamba and Yamuna Bank to Noida/Vaishali.
It said normalcy will be restored as soon as the wire is repaired.
According to many stuck commuters, the stations overflowed as the snag occurred during the peak rush hours. Those who decided to take the autos and taxis instead were fleeced.