Nope I dont deny most of it, some of it is concocted though to add to the dramatic affect. Pre 1989 it was all good, everyone was living in just fine. It was Indias continuous rigging of elections, using politicians and then throwing them in jail at their will, India interfered too much, when it had no need of doing so. Then the bored mujahideen who had nothing to do after kicking the Russians out of Afghanistan found a new playground - Kashmir :/ Sad really. I'm not even going to bother asking you whether you admit that the central government interfered too much in internal affairs of Kashmir which it shouldnt have, cos i know you're going to either concoct up some stuff or deny it.
The muhjahideen your quote refers to are the 'bored' mujahideen from Afghanistan, who sadly influenced some of the local population, again a failure by Indian intelligence.
I think you are generally right though I may question what you consider too much interference. The problem is that there was so much mischief by Pakistan that the centre had to intervene a lot more than was otherwise necessary.