[1] The true Balochs along with Kurds were natives of northwestern Iran, near caspian sea,[2][page needed] their language also supports this, which is based on one of the Western Iranian languages,[3] the balochs first migrated to eastern Iran like Kerman, Khorasan during late Sasanian period.
[citation needed] Over the time, Balochs started to call the local people by different names of their area of living or by the language they speak, for example, the Buledis of Buleda, and the Kolachis of Kulanch.
[citation needed] The fourth migration of balochs happened in 13th–14th into present day Sindh and south Punjab.
[7][8] In 635 or 636 CE, the Sindhi Hindu Brahman dynasty of Sindh ruled parts of balochistan under Chach of Aror.
Later in the rule of Kalhoras, Arghuns, Sammas, Soomras, and Talpurs many areas of Balochistan were under Sindh province.