20. The petitioner being the member of the CISF whose service has been deputed to the Airport Authority of India, therefore the petitioner cannot meddle with anything directly with the Airport Authority of India without the concurrence or through its employer viz., CISF. Therefore, on the part of the petitioner, he has rightly done the submission of the bill by 23.07.2014 to the CISF and it is a duty of the CISF before forwarding the same to the Airport Authority of India to get a clarification in order to avoid technical snag in future, therefore, such a clarification was sought for and thereafter it has been forwarded to the Airport Authority of India. Therefore, it should be treated only as continuous process after submission of the bill on the part of the petitioner, both by the CISF as well as Airport Authority of India. Insofar as Regulation 9.2 is concerned, it can be construed that if the employee is the direct employee of the Airport authority of India, the Rule can be strictly followed by stating that within three months period from the day of completion of the treatment, such bill should be submitted by the Airport Authority of India. Here the petitioner is not the direct employee of Airport authority of India as he is only a deputationist, therefore the bills have to be necessarily routed through the CISF who is the employer of the petitioner and that has been 11/15