IX 1381 then QP 625 at Mumbai
Lucknow → Mumbai → Hanoi
Timetable, Mumbai time
16:45IX 1381 from Lucknow at the gate
05:45QP 625 to Hanoi leaves the gate
13 h apart on the timetable, overnight
QP 625 leaves 13 h after IX 1381 arrives on the timetable: more than half a day, so not a connection we count.