(1) Promotion from one rank to another, and from one grade to another in the same rank shall be made by selection tempered by seniority. Efficiency and honesty shall be the main factors governing selection. Specific qualifications, whether in the nature of training courses passed or practical experience, shall be carefully considered in each case. When the qualifications of two officers are otherwise equal, the senior shall be promoted. This rule does not affect increments within a time-scale. (2) Under the present constitution of the police force no lower subordinate will ordinarily be entrusted with the independent conduct of investigations or the independent charge of a police station or similar unit. It is necessary, therefore, that well-educated constables, having the attributes necessary for bearing the responsibilities of upper subordinate rank, should receive accelerated promotion so as to reach that rank as soon as they have passed the courses prescribed for, and been tested and given practical training in, the ranks of constable and head constable. (3) For the purposes of regulating promotion amongst enrolled police officers six promotion lists - A, B, C, D, E, and F will be maintained. Lists A, B, C and D shall be maintained in each district as prescribed in rules 13.6, 13.7, 13.8 and 13.9 and will regulate promotion to the selection grade of constables and to the ranks of head constables and Assistant Sub- Inspector. List E shall be maintained in the office of Deputy Inspector- General as prescribed in sub-rule 13.10(1) and will regulate promotion to the rank of Sub-Inspector. List F shall be maintained in the office of the Inspector-General as prescribed in sub-rule 13.15(1) and will regulate promotion to the rank of Inspector. Entry in or removal from A, B, C, D or E lists shall be recorded in the order book and in the character roll of the police officer concerned. These lists are nominal rolls of those officers whose admission to them has been authorised. No actual selection shall be made without careful examination of character rolls. [Provided that five per cent of such promotions may be made from amongst the members of the Police Force, who achieve outstanding distinction in sports field at All India level or International level if they are otherwise eligible for promotion but for seniority]