Mr.Wahaj Faridy, there are any number of History books available on the subject. I cannot reproduce the same nor provide irrefutable proof here due to paucity of time and space.
Why are you trying to justify the Islamic rulers just because they bear some muslim name? I am not blaming the muslims in present day India for the same. At the same time there is no need for you to justify that also.
And you or any one abusing me does not make any difference to me as I know what I have written is 100% true. I am not a person who blindly hates any muslim or the follower of any religion as I beleive in the principles of neo-humanism (of course I question the dogmas of all religions and superstitions but don't consider as hatred for the followers of that religion).