There is no trains between PURI & BE, MB. For LKO there is 3 days connectivity. For CNB, ALD , there is almost daily connectivity even after excluding purushottam. So it should be diverted via MGS- BSB-SLN- LKO- MB-GZB. Slot can be this MGS d 17:25 BSB a 18:05, d18:15, JOP a 18:53, d 18:55, SLN a20:01, d20:03, LKO a 22:35, d22:45, BE a 2:02, d 2:05, MB a 3:20 d 3:30 GZB a 5:30, d5:32, NDLS 6:25. Distance 1869 km, time 32 Hrs, 40 minutes, speed 57kmph. Since the new route is completely electrified so the is no problem for loco change.