robe of gold, and paid tribute. The Khanate reached its peak during the reign of Khan Mir Noori Naseer Khan in 1758, who had unified the Kalat region. During this period, the Kalat was under the Suzerainty of the Durrani Empire, and did not achieve Independence until 1818. Leasing of territories to the British The territories controlled by the state fluctuated over the centuries, but eventually were established by treaties with the British Agent Robert Sandeman in the late 19th century. Parts of the state to the north and northeast were leased or ceded to form the province of British Baluchistan, which later gained the status of a Chief Commissioners province. Accession The Khanate of Kalat covered the area of . With the withdrawal of the British from the Indian subcontinent in 1947, the Indian Independence Act provided that the princely states which had existed alongside but outside British India were released from all their subsidiary alliances and other treaty obligations. The rulers were left to decide whether to accede to one of the newly independent states of India or Pakistan (both formed initially from the British possessions) or to remain independent outside both. As stated by Sardar Patel, "On the lapse of Paramountcy every Indian State became a separate independent entity." The Instruments of Accession made available for the rulers to sign transferred only limited powers, namely external relations, defence, and communications. The Shahi Jirga of Baluchistan and the non-official members of the Quetta Municipality, according to Pervaiz Iqbal Cheema, stated their wish to join Pakistan on 29 June 1947; however, according to the political scientist Rafi Sheikh, the Shahi Jirga was stripped of its members from the Kalat State prior to the vote. Kalat remained fully independent from 15 August 1947 until 27 March 1948, when its ruler, Ahmad Yar Khan (1904–1979), finally acceded to Pakistan, becoming the last of the rulers to do so. Show elections were held during this period and a bicameral parliament was established. On the night of 27 March, All India Radio carried a story about Yar Khan approaching India with an unsuccessful request for accession in around February. The next morning, Yar Khan put out a public broadcast rejecting its veracity and declaring an immediate accession to Pakistan — all remaining differences were to be placed before Jinnah, whose decision would be binding. Geography The Khanate of Kalat occupied the central part