6E 6318 then SG 553 at Mumbai
New Delhi → Mumbai → Gorakhpur
Timetable, Mumbai time
17:206E 6318 from New Delhi at the gate
17:15SG 553 to Gorakhpur leaves the gate
23 h 55 apart on the timetable, overnight
SG 553 leaves 23 h 55 after 6E 6318 arrives on the timetable: more than half a day, so not a connection we count.