AI 187 then FR 4858 at Fiumicino
New Delhi → Rome → Catania
Timetable, Rome time
02:40AI 187 from New Delhi at the gate
23:30FR 4858 to Catania leaves the gate
20 h 50 apart on the timetable
FR 4858 leaves 20 h 50 after AI 187 arrives on the timetable: more than half a day, so not a connection we count.