US Visa for Sri Lankan live in UK & Europe
Applying US visa while you in UK or Europe is very easy. you can get 5 years of visa within 30 minutes in visa interview. you have to fill non-immigrant application and follow normal procedure , after that you have to get some documents such as bank statement, university or employee letter and if you got any invitation letter. if you have traveled few countries in near past you can easily get American (US) visa. This is very easy process so you can do this by your own don’t cost much rather than initial application cost.
If you have good travel history they don’t check even bank letters and university letters. you must ware decent costume before the interview and also have to prove you are a genuine traveler. if they satisfied about your genuine they will easily issue visa on site.