Muslims believe that Islam is the last message of God to mainkind through his messenger, Muhammad.
The message of God cannot be changed, i.e. the Quran. But interpretation of those message is open to debate and scrutiny. That is the Islamic point of view.
What has happened today (Mainly due to ignorance and lack of education on part of the Muslims), is we have implied that the Interpretations of those revelations from Allah are not subject to scrutiny.
My Hindu brothers seem to take that view as the Islamic view. There is a difference between those two things.
In brief, As a Muslim I cannot change/alter the Quran as I believe it to be the final word of God. But I must always challenge my interpretation of those revelation.
