NEW DELHI, March 9 -- The Indian government Monday said that it was kept in the dark by the government of Indian- controlled Kashmir on the issue of the release of a hardline separatist leader from jail in the northern state.

Indian Prime Minister Narendra Modisaid that the release of Masarat Alam in Indian-controlled Kashmir was unacceptable and the decision was taken without the consent of the central government.

"I also lend my voice to the outrage on the release of the separatist. This is not one party's outrage, it is the nation's outrage. There will be no compromise on the integrity of the nation or public safety and security," Modi told Lok Sabha (Lower House of Parliament).

Indian Home Minister Rajnath Singh added: "I assure the House that after the full clarification from the state government, if needed, we will issue the most severe advisory."

The Prime Minister and Singh's statements came in the wake of an uproar in the Indian Parliament by opposition parties over the recent release of 44-year-old Alam, who was in jail for his alleged involvement in street protests in which 100 people died there in 2010, by Kashmir Chief Minister Mufti Mohammad Sayeed.

The country's ruling Bharatiya Janata Party and Sayeed's People 's Democratic Party have recently formed a coalition government in the state.