Two old tickets - First one is travel from Ernakulam to Ongole in 6309 DN Patna Exp on 16-9-1996. Next is again Ernakulam to Ongole on 17-9-1995 in 6315 DN Howrah Exp. Look at the departure from CHTX at 16.40 on bottom right on both tickets. These trains shared same slot then