(4)Mohammadan prisoners, other than those placed in hospital or in any convalescent or special gang, who may express a desire to be allowed to keep the fast of Ramzan, shall be permitted to do so :Provided that the Medical Officer may, in the case of any prisoner, if he is of opinion that the continuance of the fast by such prisoner is likely to be injurious or dangerous to health, direct its discontinuance.Note - Prisoners shall, while keeping the fast, receive the whole of their daily rations at the evening meal, and shall be permitted to take such rations into and to retain the whole or any portion thereof in their wards, cells or other compartments, for consumption of the following morning.