That is because there arent very many Muslim-Christian or Muslim-Parsi or Muslim-Anything riots to begin with 
Not even Muslim-Muslim riots either… while we do have a problem with organized groups of Muslims fighting other organized groups… the phenomenon of entire communities rising up and going around burning and killing members of other communities is really a very Indian cultural feature, and is no way a typical occurrence in Pakistan.
Dont get offended yar. The Muslim world has lots of problems, lets get that clear from the outset.
Now coming back to the topic.. it is not enough to point out isolated incidences.. they do not make a pattern. I am not aware that Muslim-Sikh or Muslim-Christian communal riots is an issue in India. Whenever I have heard of rioting i.e. sizeable chunks of communities going against others, in India, one of them has always been the Hindu community. Thats the only observation Im making.
True, nothing interests me more than seeing India lose.