A considerable section in urban India may be enjoying sexual freedom but for majority of Indians, sex is still a dirty word, says writer Richard Crasta, author of the novel `Revised Kama Sutra`."One of the curious things I have noticed is that for lot of Indians, sex is still a dirty word. So it will take time for them to remain relaxed and enjoy the experience," says Crasta, who has come out with a republished version of his raunchy comic novel ‘The Revised Kama Sutra’, published 20 years ago.