To support participants of the Vedanta Delhi Half Marathon at Jawaharlal Nehru Stadium, the Delhi Metro will start services early on October 20 at 3:15 am, except for the Grey Line and Airport Express. Trains will run every 15 minutes until 4:00 am and then every 20 minutes until 6:00 am. Participants can enjoy free rides with QR-coded wristbands, and volunteers will assist at stations.