AI 2927 then SG 622 at Mumbai
New Delhi → Mumbai → Varanasi
Timetable, Mumbai time
11:55AI 2927 from New Delhi at the gate
10:40SG 622 to Varanasi leaves the gate
22 h 45 apart on the timetable, overnight
SG 622 leaves 22 h 45 after AI 2927 arrives on the timetable: more than half a day, so not a connection we count.