(1) In each district a list shall be maintained in card index form (form 13.8(1)) of all constables who have passed the Lower School Course at Phillaur and are considered eligible for promotion to Head Constable. A card shall be prepared for each constable admitted to the list and shall contain his marking under sub-rule 13.5(2) and notes by the Superintendent himself, or furnished by Gazetted Officers under whom the Constable has worked, on his qualifications and character. The list shall be kept confidentially by the Superintendent and shall be scrutinized and approved by the Deputy Inspector-General of Police at his annual inspection. (2) Promotions to Head Constable shall be made in accordance with the principle described in sub-rules 13.1(1) and (2). The date of admission to List C shall not be material, but the order of merit in which examinations have been passed shall be taken into consideration in comparing qualifications. In cases where other qualifications are equal, seniority in the police force shall be the deciding factor. Selection grade constables who have not passed the Lower School Course at the Police Training School but are otherwise considered suitable may, with the approval of the Deputy Inspector- General, be promoted to Head Constable up to a maximum of ten per cent of vacancies.