Mir Abdullah had greatly expanded the borders of the Khanate, and conquered the region of Balochistan from Bandar Abbas to Karachi.
His conflicts with the Kalhoras of Sindh ultimately led to war with them and his subsequent death in the Battle of Kachhi in 1731.
In the following events, Mir Nasir Khan was sent as hostage of Afsharids to Isfahan where he remained till 1748.
[6] The border of Balochestan in the reign of Nasir khan stretched from across modern-day Pakistan, Iran, and Afghanistan.
In the East stretched as far as Punjab including Dera Ghazi Khan, in the south Makran coast along the Arabian Sea from karachi to bandar abbas, in the western included Persian Balochistan (modern-day Sistan and Baluchestan Province in Iran), Kerman and Bandar abbas.
[8][9] Nasir Khan I exchanged embassies with the Ottoman Caliphate, Durrani Empire, Afsharid Iran as well as Sultanate of Oman.
Although Nasir Khan initially promised him to help in re-instating him over Oman, he in the end only gave him the port of Gwadar.
[2] He received the titles of Ghazi-e-Din by the Ottoman Caliphs as well as Begler Begi from the Durrani rulers.