Show me UN Charter said so.
Resolution 91 (1951)
Concerning the India-Pakistan question submitted by the Representatives of
United Kingdom and United States and adopted by the Security Council on
March 30, 1951.
(Document No. S/2017/Rev. 1, dated the 30th March, 1951).
THE SECURITY COUNCIL,
Having received and noted the report of Sir Owen Dixon, the United Nations Representative for
India and Pakistan on his mission initiated by the Security Council resolution 80 (1950) of March
14, 1950.
Observing that the Governments of India and Pakistan have accepted the provisions of the United
Nations Commission for India and Pakistan resolutions of 13 August, 1948, and 5 January, 1949,
and have re-affirmed their desire that the future of the State of Jammu and Kashmir shall be decided
through the democratic method of a free and impartial plebiscite conducted under the auspices of the
United Nations.
..
Reminding the Governments and authorities concerned of the principle embodied in its resolutions 47
(1948) of 21 April 1948, 51(1948) of 3 June, 1948 and 80 (1950) of 14 March, 1950 and the
United Nations Commission for India and Pakistan resolutions of 13 August, 1948, and 5 January,
1949,
that the final disposition of the State of Jammu and Kashmir will be made in accordance with
the will of the people expressed through the democratic method of a free and impartial plebiscite
conducted under the auspices of the United Nations.