These easy procedures are followed while applying for a Sri Lankan visa at an embassy:
You must get in touch with Sri Lanka's closest embassy or consulate. The list of diplomatic representations of Sri Lanka overseas is available here.
Fill out the application for Sri Lanka and deliver it to the embassy or consulate together with the appropriate paperwork, your passport, and the visa cost.
Your application will be forwarded by the embassy or consulate to the Sri Lankan Department of Immigration & Emigration (DI&E).
A reference number for your visa application will be given to you. You will be informed by the embassy or consulate when your application has been processed. Normally, this takes three business days.
When you return to the embassy or consulate, you will be given your passport together with the Sri Lanka visa. You will either be given a single-, double-, or multiple-entry visa that is good for three months, depending on the length of your visa.
When visiting Sri Lanka, you must have a passport with the visa already stamped on it (or an ETA), a confirmed return flight reservation, and evidence that you have enough money to cover your stay.