AI 2977 then 6E 5235 at Mumbai
New Delhi → Mumbai → Chennai
Timetable, Mumbai time
23:55AI 2977 from New Delhi at the gate
22:156E 5235 to Chennai leaves the gate
22 h 20 apart on the timetable, overnight
6E 5235 leaves 22 h 20 after AI 2977 arrives on the timetable: more than half a day, so not a connection we count.