Tugrul-shah ascended the throne of the Kirman Seljuks State on the date when the Ruler Muhammed died. First of all, Tugrul had arrested his brother, Mahmud-shah. Then, Seljuk-shah who had been involved in a struggle for sultanate in the lifetime of his father was caught and killed(1156-57). Therefore, he had taken the proper precautions about the claimants of the crown that could pose a threat for him. The Ruler Tugrul-shah continued his friendship with the neighbouring Salgurlu State in Fars like in the period of his father. It has been observed that the tutors started to gradually establish dominion over the rulers and within the state administration in the Kirman Seljuks State since the period of Tugrul-shah. The Ruler Tugrul-shah died in March 1170.