BA 1327 then BA 143 at Heathrow
Newcastle → London → New Delhi
Timetable, London time
12:45BA 1327 from Newcastle at the gate
11:10BA 143 to New Delhi leaves the gate
22 h 25 apart on the timetable, overnight
BA 143 leaves 22 h 25 after BA 1327 arrives on the timetable: more than half a day, so not a connection we count.