BA 659 then BA 257 at Heathrow
Larnaca → London → New Delhi
Timetable, London time
18:50BA 659 from Larnaca at the gate
18:35BA 257 to New Delhi leaves the gate
23 h 45 apart on the timetable, overnight
BA 257 leaves 23 h 45 after BA 659 arrives on the timetable: more than half a day, so not a connection we count.