6E 1385 then TR 609 at Bangkok
Chennai → Bangkok → Singapore
Timetable, Bangkok time
10:306E 1385 from Chennai at the gate
09:15TR 609 to Singapore leaves the gate
22 h 45 apart on the timetable, overnight
TR 609 leaves 22 h 45 after 6E 1385 arrives on the timetable: more than half a day, so not a connection we count.