If you have to travel from odisha to delhi, then trust me never opt this train. It will leave you stranded in the midnight time at NDLS. It will never reach NDLS before 0000hrs. Its dangerous and risky to go out to anywhere at this mid-night time.
Instead opt Nandan kanan or Purushottam to go to delhi. Nandan kanan will leave you at NDLS by night 2100 pm or 2200 pm. And Purushottam is best train. It arrives NDLS in the morning which is safest time.
And for return journey from delhi to...
more... odisha, i would suggest you to take this train instead of Nandan Kanan as odisha sampark kranti has cleaner-better rakes, better food and is safer than nandan kanan exp.