Samir: Yes, those historians are precisely the left wing communist historians who have tried to hide the atrocitiy facts of Khilji, Bhamini Sultans etc. The atrocities of Aurangazeb are not told in history text books. But its there in the collective memory of the people.
Actually, who are Indian muslims? They are originally Hindus or Buddhists and were forced to convert to Moslem at the edge of the sword. If you ask who is your great great great grand father is.. 95% of the time he would have been a Hindu or Buddhist.