SG 621 then AI 2783 at Mumbai
Udaipur → Mumbai → Chandigarh
Timetable, Mumbai time
20:45SG 621 from Udaipur at the gate
16:45AI 2783 to Chandigarh leaves the gate
20 h apart on the timetable, overnight
AI 2783 leaves 20 h after SG 621 arrives on the timetable: more than half a day, so not a connection we count.