IX 1381 then AI 2574 at Mumbai
Lucknow → Mumbai → New Delhi
Timetable, Mumbai time
16:45IX 1381 from Lucknow at the gate
09:00AI 2574 to New Delhi leaves the gate
16 h 15 apart on the timetable, overnight
AI 2574 leaves 16 h 15 after IX 1381 arrives on the timetable: more than half a day, so not a connection we count.