AI 3318 then 6E 73 at Mumbai
Patna → Mumbai → Riyadh
Timetable, Mumbai time
11:15AI 3318 from Patna at the gate
04:256E 73 to Riyadh leaves the gate
17 h 10 apart on the timetable, overnight
6E 73 leaves 17 h 10 after AI 3318 arrives on the timetable: more than half a day, so not a connection we count.