Meanwhile, the Ghurid commander Bakhtiyar Khalji subjugated the petty Gahadavala chiefs in eastern Uttar Pradesh and Bihar region. After his Bihar campaign, which involved destruction of Buddhist monasteries, Khalji arrived in Badaun to greet Aibak, who had just concluded his successful campaign at Kalinjar. On 23 March 1203, Khalji presented Aibak with war booty, including 20 captured elephants, jewels and cash. Aibak honoured Khalji, who went on to conquer a part of the Bengal region in the east. Bakhtiyar acted independently, and at the time of his death in 1206, was not a subordinate of Aibak.