A special camp court inside the Guwahati central jail on Thursday extended the police custody of Ulfa chief Arabinda Rajkhowa along with ULFA deputy commander-in-chief Raju Baruah and Rajkhowa's bodyguard Raja Bora to nine days. Rajkhowa and others were produced before a special court in Guwahati, after the end of their twelve-day police remand. The state police though had sought 14 days custody in three other blast cases.