6E 5314 then SG 9553 at Mumbai
Chennai → Mumbai → Gorakhpur
Timetable, Mumbai time
09:006E 5314 from Chennai at the gate
21:25SG 9553 to Gorakhpur leaves the gate
12 h 25 apart on the timetable
SG 9553 leaves 12 h 25 after 6E 5314 arrives on the timetable: more than half a day, so not a connection we count.