QP 1126 then AI 131 at Mumbai
Kolkata → Mumbai → London
Timetable, Mumbai time
01:55QP 1126 from Kolkata at the gate
14:05AI 131 to London leaves the gate
12 h 10 apart on the timetable
AI 131 leaves 12 h 10 after QP 1126 arrives on the timetable: more than half a day, so not a connection we count.