AI 111 then BA 892 at Heathrow
New Delhi → London → Sofia
Timetable, London time
11:30AI 111 from New Delhi at the gate
11:10BA 892 to Sofia leaves the gate
23 h 40 apart on the timetable, overnight
BA 892 leaves 23 h 40 after AI 111 arrives on the timetable: more than half a day, so not a connection we count.