Analysis of information sources in references of the Wikipedia article "Khanate of Kalat" in English language version.
However, in 1758 Nasir I Khan of Kalat proclaimed his independence from the Afghani rulers.
Baloch separatism, for example, can be traced back to 1758, when Nasir Khan of Kalat won sovereign status from the Afghan empire...
Once he had established his army on a solid basis, however, Nasir Khan took on the Afghans militarily, fighting Ahmad Shah Durrani's forces to a standstill in 1758. Thereafter, Kalat enjoyed sovereign status until the arrival of the British...
Pakistani leaders summarily rejected this declaration [of independence], touching off a nine-month diplomatic tug of war that came to a climax in the forcible annexation of Kalat... But it is clear that Baluch leaders, including the Khan, were bitterly opposed to what happened... Moreover, the Pakistani version of the accession debate is discredited by a study of the discussion of the Kalat Assembly on the accession issue and by interviews with a variety of Baluch leaders that confirm the authenticity of the official assembly proceedings.
Seven months later, on 27 March 1948, Kalat acceded to Pakistan. Whether it was a willing accession or a coerced one is a disputed matter, with pro-state historians arguing that the Khan willingly made the decision to accede, and nationalist scholars maintaining that Balochistan was annexed. However, what is certain is that it was an unpopular decision, and sparked the first revolt led by the Khan of Kalat's brother (see also the next section in this chapter). The Pakistan Army, which had already been sent in to Kalat, put down the rebellion.
The Afghan army besieged the Qalat fort and the siege lasted for forty days. The Afghans failed to capture it. Ultimately through the good offices of the Wazir Shah Wali Khan a peace treaty was concluded. Mir Nasir Khan came to Ahmad Shah and apologized for his misdeeds. According to the treaty Mir Nasir Khan accepted the suzerainty of the Afghan king. Ahmad Shah agreed that Mir Nasir Khan should pay no tribute, but should furnish, when called upon a contingent of troops sending them at his own cost to the royal camp.
The political convulsions of the last years of the 18th century and the first quarter of the 19th century had led to the empire's dismemberment. A Qajar offensive resulted in the loss of western Khorasan (1209/1795) and a direct threat to Herat, which was besieged in 1249/1833 and in 1253/1837. To the north of the Hindu Kush, various Uzbek principalities entered the orbit of khanate of Bokhara. In the south, the khanate of Kalāt became independent.
