Applying online
Travelers making short visit to Sri Lanka (even less than 30 days) required to obtain an Electronic Travel Authorization (ETA). Travelers who wish to travel to Sri Lanka for less than 30 days can obtain Tourist visa with double entries through www.eta.gov.lk. The ETA initially limited to 30 days stay in Sri Lanka from the date of arrival, although it may be extended for up to three months from the Department of Immigration & Emigration, in Sri Lanka by paying the relevant extension fee.