http://h2zkj5xeycxb2esnyqeabuuo6ui6jlkdb72qjfi2hu3y3h5ilpmjphid.onion/wiki/Visas/index.html
These are some of the countries whose nationals require a visa to visit the UK (as of June 2006): Bosnia, China, Colombia, Cuba, Egypt, India, Indonesia, Peru, Romania, Russian Federation, Ukraine. To find out if you need a UK visa, check http://www.ukvisas.gov.uk/ A UK 'visitor' visa is sufficient to attend a conference: you do not need a business visa.