TG 360 then SG 86 at Bangkok
Chennai → Bangkok → Kolkata
Timetable, Bangkok time
21:30TG 360 from Chennai at the gate
21:35SG 86 to Kolkata leaves the gate
5 min apart on the timetable
The last days
TG 360 and SG 86 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.