6E 5258 then AI 2440 at Mumbai
Chennai → Mumbai → New Delhi
Timetable, Mumbai time
15:506E 5258 from Chennai at the gate
14:45AI 2440 to New Delhi leaves the gate
22 h 55 apart on the timetable, overnight
AI 2440 leaves 22 h 55 after 6E 5258 arrives on the timetable: more than half a day, so not a connection we count.