>>12001077>Scandinavian languages use retroflex consonants too.This is true, but Indian languages have much more systematic minimal pairs, where retroflex consonants oppose to dental consonants.
By the way, why on earth does the typical Indian English accent replace alveolar stops with retroflex ones? Scandinavian speakers don't, and as far as I am concerned, a dental stop is way more similar to an alveolar one than a retroflex. (This might be a perception bias from my native language, which only features dental stops out of the three, but still, I find the use of retroflex consonants ridiculous.)