This is a fact. Railways has stupidly has given more priority to Rajdhani, Duronto, shtabdi to make passengers travel more in premium trains and get more revenue using Flexi fare. What better way then to, prioritise and make Express/Mails suffer and give OT to Rajdhani and Premium trains. If you travel in trains like Mahabodhi, Vikramshilla, Sampoorna Kranti then you can suffer 3 to 4 hrs delay. But long running trains like NE express, Avadh Asam, Bramputra Mail are the major sufferers.