TR 399 then IX 629 at Changi
Miri → Singapore → Chennai
Timetable, Singapore time
21:50TR 399 from Miri at the gate
21:00IX 629 to Chennai leaves the gate
23 h 10 apart on the timetable, overnight
IX 629 leaves 23 h 10 after TR 399 arrives on the timetable: more than half a day, so not a connection we count.