Addressing the inaugural ceremony of a two-day international parliamentary seminar on Kashmir here, Sharif also praised the spirit and determination of the Kashmiri people for their struggle for the right to self-determination.
"Our hearts beat and sink with our Kashmiri brethren," Radio Pakistan quoted Sharif as saying.
The world needs to tell India that "enough is enough" with regard to its policy towards Kashmir, he said, while asserting that Kashmir is an "integral part" of Pakistan.
He regretted the "Indian aggression" against Kashmiri people in the wake of protests triggered by the killing of Wani by security forces on July 8.
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Sharif said supporting the Kashmiri struggle for their right to self-determination is faith of every Pakistani.
He said Pakistan will continue to extend moral, political and diplomatic support to the Kashmiri people in their indigenous struggle and continue to shake the conscience of the international community for their rights.
Sharif said Pakistan had sent special envoys to important countries to sensitise them about the situation in Kashmir. He said that he personally raised the dispute in his address to the UN General Assembly session.
He said the UNSC resolutions should be implemented and the continued sufferings of Kashmiri people must come to an end now.
Sharif while addressing a joint session of Parliament in October last year had praised Wani, drawing a strong reaction from India which said this shows Pakistan's attachment to terrorism.
He had also praised the militant during his address to the UN General Assembly on September 21, describing him as a "young leader".
Speaking at today's seminar, Sharif's Adviser on Foreign Affairs Sartaj Aziz said that Kashmir issue "is a stigma on the international process".
He said both Kashmir and Palestine are the two longest unresolved items on the UNSC agenda.
Aziz said "the presence of a large number of Indian troops
in the Valley is a clear manifestation of Indian policy to use state terrorism to suppress the just struggle of Kashmiri people".
He also called upon India to desist from steps that alter the demography of Kashmir.
"Solution of the problem lies only in a fair and transparent plebiscite under the auspices of the United Nations," he said.
Addressing the seminar organised by National Assembly Secretariat and Young Parliamentarians Forum, Speaker National Assembly Sardar Ayaz Sadiq said the lingering Kashmir dispute must be solved at the earliest to avert further instability in the whole region.