6E 5243 then SG 9553 at Mumbai
Kolkata → Mumbai → Gorakhpur
Timetable, Mumbai time
04:456E 5243 from Kolkata at the gate
21:25SG 9553 to Gorakhpur leaves the gate
16 h 40 apart on the timetable
SG 9553 leaves 16 h 40 after 6E 5243 arrives on the timetable: more than half a day, so not a connection we count.