6E 2104 then SG 622 at Mumbai
Naqpur → Mumbai → Varanasi
Timetable, Mumbai time
12:456E 2104 from Naqpur at the gate
10:40SG 622 to Varanasi leaves the gate
21 h 55 apart on the timetable, overnight
SG 622 leaves 21 h 55 after 6E 2104 arrives on the timetable: more than half a day, so not a connection we count.