this is an extract from my cruise documentation/receipt, we are D2D Mumbai to Singapore, Feb24
"POST-CRUISE TRANSFER: FROM: PIER TO: AIRPORT
TRANSFER ON 29/02/2024
**PLEASE NOTE THAT IF YOUR SILVERSEA FLIGHT DEPARTS AFTER 4PM, YO U ARE ENTITLED TO A TOUR WITH DROP OFF AT THE AIRPORT.
IF YOUR SI LVERSEA FLIGHT DEPARTS AFTER 10PM, WE RECOMMEND THAT YOU BOOK A D AYROOM, OR A POST NIGHT AS THE WAIT
TIME CAN EXCEED 12 HOURS"
seems very clear to me.
colin