Not only SRK, but Bollywood is becoming more popular in Europe these days. The main possible reasons, from my own experience in Germany is that, 1. Europeans are enjoying the Love and culture shown in the films which is completely different from their culture. 2. For historical reasons, most of the Europeans, especially Germans, do not like English and English speaking people, so they obviously like to encourage Bollywood. 3. The quality of the movie making in Bollywood is improved to be comparable with Hollywood (at least some times). so..we shouldnt mind if its SRK or Hrithik who keeps India ahead in the global competition.