My analysis of this is that the situation in Kashmir has evolved (negatively for India) on a major scale that such a troop deployment is needed. Is the Indian media hiding things from the public? Because Kashmir already is one of the most militarized zones. They don't need more soldiers to deal with a minor insurgency (specially when compared with insurgencies in Syria, Afghanistan and at a level even (decreasing terrorism in?) Pakistan.
Something has definitely got them spooked. A few soldiers being killed here and there does not warrant such high handedness. Some 200 people died in Kashmir in the last year compared with thousands in Afghanistan. Something is definitely going on behind the scenes.