ET 610 then SG 488 at Mumbai
Addis Ababa → Mumbai → Port Blair
Timetable, Mumbai time
07:15ET 610 from Addis Ababa at the gate
05:55SG 488 to Port Blair leaves the gate
22 h 40 apart on the timetable, overnight
SG 488 leaves 22 h 40 after ET 610 arrives on the timetable: more than half a day, so not a connection we count.