Section 5(8) in The Indian Police Service (Pay) Rules, 2016
(8)The pay of a member of the Service at Level 15 on promotion to Higher Administrative Grade + shall be fixed at Level 16 of the Pay Matrix by granting one increment in the Level from which the member of Service is promoted and the figure so arrived at will be located in the Level of the post to which he is promoted and if such an identical figure corresponds to any Cell in the applicable Level of the Pay Matrix, the same shall be the pay, and if no such Cell is available in the applicable Level, the pay shall be fixed at the immediate next higher Cell, subject to a minimum of Level 16 and the pay in the Higher Administrative Grade + shall not exceed the maximum of Level 16.
