PM MODI approves Northern Bullet Rail Corridor; Delhi-Agra in just 59 minutes Prime Minister Narendra Modi approved India's Northern Corridor rail network, Union Railway Minister Ashwini Vishnu announced on 31 October. The proposed high-speed rail network will connect Delhi, Agra, Kanpur, Lucknow, Ayodhya, Varanasi, Prayagraj, Patna and Siliguri, and further extend to Guwahati. Estimated travel times include 59 minutes from Delhi to Agra, 2 hours and 12 minutes to Lucknow and approximately 3 hours and 33 minutes to Varanasi.