QP 1124 then SG 622 at Mumbai
Allahabad → Mumbai → Varanasi
Timetable, Mumbai time
13:35QP 1124 from Allahabad at the gate
10:40SG 622 to Varanasi leaves the gate
21 h 05 apart on the timetable, overnight
SG 622 leaves 21 h 05 after QP 1124 arrives on the timetable: more than half a day, so not a connection we count.