BA 865 then AI 162 at Heathrow
Prague → London → New Delhi
Timetable, London time
09:05BA 865 from Prague at the gate
08:45AI 162 to New Delhi leaves the gate
23 h 40 apart on the timetable, overnight
AI 162 leaves 23 h 40 after BA 865 arrives on the timetable: more than half a day, so not a connection we count.