The services on all the six lines of the Delhi Metro resumed by 8.45 a.m. after two hours of disruption due to tripping of power supply, an official said here Monday.
"The services in all the six lines became normal by 8.45 a.m. We are receiving hydel power from Bhutan on priority basis," a Delhi Metro official said.
"We have not been able to operate all the lines for an hour from 6 a.m. to 7a.m. due to tripping of power supply. At 7 a.m. we restored 25 percent of the trains on all the lines, and now all the trains are plying as usual," the official added.
Train services on the 190-km Metro network connecting length and breath of the national capital were affected due to power failure in the Northern Grid, the main power source for Delhi, Uttar Pradesh, Punjab, Haryana, Rajasthan, Himachal Pradesh and Jammu and Kashmir.
The Northern Grid failure also caused power cuts in large parts of Delhi.
The Delhi Metro normally operates over 2,700 trips a day, covering about 70,000 km and carrying around 1.8 million passengers on week days.