Omar Abdullah, former Jammu and Kashmir Chief Minister, said the government's decision today to repeal Article 370, is a "total betrayal of trust" of the people and that it amounted to "aggression".
Mr Abdullah of the National Conference is among those placed under house arrest since late last night.
"The government of India (GOI)'s unilateral and shocking decisions today are a total betrayal of the trust that the people of Jammu & Kashmir had reposed in India when the State acceded to it in 1947. The decisions will have far-reaching and dangerous consequences . This is an aggression against people of the State as had been warned by an all-parties meeting in Srinagar yesterday," Mr Abdullah said in a statement.
Home Minister Amit Shah informed parliament that Article 370 - which granted special status to Jammu and Kashmir - has been abolished with the president signing an order that comes into effect "at once.