Indian fans have set stadiums alight, forced the Pakistan team off the field in the past, so don't go there with the high ground.These days may be. Earlier certainly not. May be its because of that Lahore attack and a feeling of guilt.
I just gave an example. There are many such incidents. The 1989 tour was particularly hostile. If you get time read Sanjay Manjrekar's article on it.
What I am saying is that home fans have the right to create a hostile atmosphere if they want, but to a certain level.