Abstract
This research explores the success or failure of diplomacy on part of United Nations Organization and international community in case of Kashmir issue, the conflict area between Pakistan and India. By using qualitative research method, a brief historical background of Kashmir issue and role of the United Nation has been explored. Pakistan contemplates Kashmir as its key political dispute but India did not accept it. The decision of Kashmir issue was reviewed by UN Security Council on 21st April 1948 according to its 47th resolution. The Security Council sent a commission to sub-continent in 1948 to solve the issue by impartial plebiscite in Kashmir. India and Pakistan did not accept this commission but they appreciated the mediation done by UN commission. After considerable efforts the commission declared its failure in December 1949. The United Nation has power to ensure peace in Kashmir and had plebiscite. While talking about plebiscite it is according to UN resolution of January 1949 which laid down.“The question of the accession of the state of Jammu and Kashmir to India or Pakistan will be