SG 87 then TG 640 at Bangkok
New Delhi → Bangkok → Tokyo Narita
Timetable, Bangkok time
02:45SG 87 from New Delhi at the gate
22:30TG 640 to Tokyo Narita leaves the gate
19 h 45 apart on the timetable
TG 640 leaves 19 h 45 after SG 87 arrives on the timetable: more than half a day, so not a connection we count.