Union Home Minister Rajnath Singh on Sunday flagged off the bi-weekly double-decker AC train on Delhi-Lucknow route with a ticket price of Rs 630. The 12 coach train, from May 1, will depart from Anand Vihar (Delhi) on Fridays/Sundays (2:10 pm) and reach Lucknow (10:50 pm) the same day. The 8 hrs return journey will begin at 5 am.