Immense violence started in Kashmir back in 1989 when India pulled off something like this the last time. It started dying out by 1995-96 as India adopted a more democratic and less militaristic approach to Kashmir (Vajpayee's Kashmiriyat, Insaniyat, Jamburiyat) right until the current Government came in and started going back to the militaristic approach by quelling protests by brute-force. This move is not going to go well in Kashmir and the Government knows it. People are going to revolt and that is why the valley has been completely locked down. This is not about saving lives. If that was the case the forces wouldn't shoot protestors every years in Kashmir. This is about suppressing the voices of those who object.
India had made a lot of progress democratically in Kashmir and had actually won over a lot of Kashmiris. A lot of them either supported or tolerated Indian rule as long as their daily lives went on peacefully. With this move, they've lost all popular support they had in the valley. All pro-Indian Kashmiris I know personally are feeling betrayed and regretting that they supporting Indian rule in Kashmir.
Even elected pro-India politicians have been jailed and their voices suppressed. IMO this is going to result in people losing their belief in Indian democracy. Over the next few years, I expect number of militants in the Kashmir valley to grow rapidly. I think the valley will go back to where it was in early 90s. I hope it doesn't come to that but I don't see this playing out any other way unfortunately.
Showing military might is not the solution.