India’s government has said it plans to revoke the part of the constitution that gives Indian-administered Kashmir special privileges.
Article 370, which grants it significant autonomy, is sensitive because it is the basis on which the princely state of Kashmir joined India when it was partitioned in 1947.
But the entire region is disputed between India and Pakistan who claim it in full but only control parts of it.
The move is expected to spark unrest.
There has been an insurgency against the authorities in Indian-administered Kashmir for three decades, with tens of thousands of lives lost.
India and Pakistan, both nuclear powers, have fought two wars and a limited conflict over the Himalayan territory.
Home Minister Amit Shah introduced the measure in parliament amid massive protests from the opposition.