CBI has conducted searches at the premises of two Central Bureau of Narcotics (CBN) officials and seized incriminating documents and other things in connection with an alleged demand of bribe of Rs 25 lakh. Searches were conducted at the Indore residence of CBN Superintendent Mukesh Khatri, who is posted in Ujjain, and Kota office of another CBN Superintendent, Dharam Singh Meena, a CBI release said.