The Business ETA will be granted for 30 days, therefore make sure your arrival and departure days to and from Sri Lanka and your
elective period fall within this 30-day period.
In the event of a longer elective period, you may extend your visa upon arrival to Sri Lanka.
This extension will be applied for you by the International Unit of the Faculty of Medicine,
University of Colombo. The extension will cost you an additional payment., which will depend on your country,
payment details can be found under schedule-B visa fees at the below link