BA 349 then VS 302 at Heathrow
Nice → London → New Delhi
Timetable, London time
14:05BA 349 from Nice at the gate
12:30VS 302 to New Delhi leaves the gate
22 h 25 apart on the timetable, overnight
VS 302 leaves 22 h 25 after BA 349 arrives on the timetable: more than half a day, so not a connection we count.