My dear Friend....never utter a word Muslim & Muslim is not only Dawood...even Abdul Kalam is a muslim....as far as terror is concerned think of GUJRAT.....hindus....they had infact barged in to the houses & raped/burnt lot of people alive ........if i start stating the incidents then there is no end.
Let us not pull in caste.....& if you have doubt to continue friendship with muslims it is left to you....kindly understand one thing A FRIEND IN NEED IS FRIEND INDEED....ther is no caste here.