The Hindu has put together some information on Vande Mataram. Personally, there is a translation of the song by Bhrathiyar, which I like a lot, especially in MS’ voice. Having said that, forcing people to sing it robs the song of its dignity. Things “national” become “national” because people voluntarily choose them; and, certainly not by legislation. To give a different analogy, this is equivalent to asking people to play hockey compulsorily since it is our national game.