66 of persons whose message has been intercepted, the name and other particulars of the officer or the authority to whom the intercepted message or class of messages has been disclosed, the number of copies of the intercepted message or class of messages made and the mode or the method by which such copies are made, the date of destruction of the copies and the duration within which the directions remain in force. (9) All the requisitioning security agencies shall designate one or more nodal officers not below the rank of Superintendent of Police or Additional Superintendent of Police or the officer of the equivalent rank to authenticate and send the requisitions for interception to the designated officers of the concerned service providers to be delivered by an officer not below the rank of Sub-lnspector of Police. (10) The service providers shall designate two senior executives of the company in every licensed service area/State/Union Territory as the nodal officers to receive and handle such requisitions for interception. (11) The designated nodal officers of the service providers shall issue acknowledgment letters to the concerned security and Law Enforcement Agency within two hours on receipt of intimations for interception. (12) The system of designated nodal officers for communicating and receiving the requisitions for interceptions shall also be followed in emergent cases/unavoidable cases where prior approval of the competent authority has not been obtained.