 On 12 July 1915, Rais Ali and Tangestani's attacked the British residency in Bushehr but they were relapsed .On 8 August 1915 the British forces occupied Bushehr with five hundred more Anglo-Indian cavalrymen and on 14 September removed Mokhber-al-Saltana from Shiraz and installed Habib-Allah Qawām-al-Molk as acting governor of Fars Province.Between August and October 1915, Qawām-al-Molk received financial support from the British .