Amid the escalating tension between India and Pakistan, a red alert was issued by DMRC on Wednesday evening.
Confirming the order, DMRC in a statement said all metro trains and stations were put on high alert from 6 PM.
Officials have been directed to "inspect entire station premises for any suspicious items/activity including parking lots and report to the Control Centre every two hours".
From Pulwama to airstrikes: A brief history of what happened
For the uninitiated, poor relations between India and Pakistan worsened after Pulwama attack of February 14 which was executed by Jaish-e-Mohammed and ended in the martyrdom of 40 CRPF soldiers.
As Pakistan showed reluctance to act on homegrown terror, IAF launched a discreet operation on Tuesday.
JeM's biggest camp in Balakot, Pakistan, was demolished by 12 Mirage-2000 jets before dawn on February 26.
India acted on terrorism, Pakistan called it "aggression"
While India acted against terror groups, Pakistan saw it as an "act of aggression" and retaliated this morning.
Three Pakistani jets entered Indian airspace and targeted military establishments, the MEA said in a statement in the afternoon.
While their operation was foiled, India lost one MiG-21 jet. Pakistan also managed to capture wing commander Abhinandan Varthaman, the government confirmed a short while ago.
India wants Pakistan to return IAF pilot soon
Notably, Pakistan claimed that it had "captured" two IAF pilots but later retracted saying only Abhinandan is in their custody.
As images and videos released by Pakistan showed Abhinandan was manhandled across the border, the Indian government criticized the action.
Pakistan's acting High Commissioner was summoned and India asked for "immediate and safe return" of the pilot.
India also objected to "vulgar display of an injured IAF personnel"
Pakistan violated Geneva convention: India
MEA: India also strongly objected to Pakistan’s vulgar display of an injured personnel of the Indian Air Force in violation of all norms of International Humanitarian Law and the Geneva Convention. pic.twitter.com/DIZzN6DdZH