6E 5084 then SG 622 at Mumbai
Chennai → Mumbai → Varanasi
Timetable, Mumbai time
12:006E 5084 from Chennai at the gate
10:40SG 622 to Varanasi leaves the gate
22 h 40 apart on the timetable, overnight
SG 622 leaves 22 h 40 after 6E 5084 arrives on the timetable: more than half a day, so not a connection we count.