(1)The Director is the authority competent to grant casual leave, or leave of absence during gazetted holidays or vacations, to all officers immediately subordinate to him, i.e., Additional Director of Public Instruction, Joint Director of Education (Training), Deputy Directors of Education, Assistant Directors of Education, Budget Officer, Regional Deputy Directors of Education, Deputy Directress of Education (Girls), Inspectress of Schools, Bihar, Director of Mithila Institute, Darbhanga, Director of Rashtra Bhasha Parishad, Director of the Institute of Post-Graduate Studies in Arabic and Persian, Director, Nava Nalanda Mahavihar, Nalanda, Director of A.N. Sinha Institute, Patna, Director of Vaishali Institute, Muzaffarpur, Director, Research Institute of Prakrit, Jainology and Ahimsa, 'Director, Text Book Research Bureau, Superintendent of Libraries, Bihar, Superintendent, Hazaribagh Reformatory School, Principal of Professional Colleges and that of the Madrasa Islamia Shamsul Huda, Principal, Patna School of Arts, Principal, Rural Institute, Birauli, Secretaries, Basic Education Board, Educational Literature Officer, Text-Book and Education Literature Committee, the Education Publication Officer, Principal, Netarhat Residential School, Principal, Government College of Health and Physical Education, Assistant Directors of Education (Sanskrit) and (Islamic), Registrar of Examinations, Secretary, Board of Secondary Education, Personal Assistant to the Director of Public Instruction, Lady School Medical Officer (subject to report to the Director of Health (Services), Superintendent, State After-Care Home.