The method of recruitment, age limits and other qualifications relating to each post in the Central Industrial Security Force are specified in which one of the following documents ?

According to Rule 7 of the Central Industrial Security Force Rules, 2001, the method of recruitment, age limit, and other qualifications relating to each post in the force are specified in the Recruitment Rules for that specific post, as amended from time to time. While the CISF Act, 1968 provides the primary legislative framework for the constitution and regulation of the force, and the CISF Rules, 2001 provide general administrative and disciplinary guidelines, the specific eligibility criteria (like age and educational qualifications) for various ranks are detailed in the respective Recruitment Rules (RRs) notified by the Ministry of Home Affairs. The agreement signed at the time of appointment (Option D) relates to the terms of service and discipline rather than the recruitment qualifications themselves.