Guwahati, July 21: A delegation of All Assam Bhojpuri Parishad today submitted a memorandum to the Commissioner & Secretary (Home) demanding a CBI inquiry into the brutal killing of ndalal Sah and his daughter Kajol Sah on July 14 at Bijulibon under Tinsukia district. The delegation also demanded special security arrangement of Bhojpuri people who have been living in different parts of Assam.