(vi) If the Senior Medical Officer is of the opinion that solitary confinement is likely to prove injurious to the mind or body of any prisoner, he shall forthwith order him to be removed from the cell, and shall record the order in his Report Book. (vii) If a prisoner sentenced to solitary confinement is declared permanently unfit by the Medical Officer to undergo such confinement, the fact shall be reported to the Court which awarded the sentence. The declaration shall be recorded on the History Ticket and the warrant. Solitary confinement when to be undergone. Rule 641. If a prisoner is sentenced under two or more separate warrants any period of solitary confinement awarded can only be given effect to during the time the sentence, of which it forms part, is being executed. Endorsement undergone. on warrant of Solitary Confinement Rule 642. On the expiry of the sentence of a prisoner, including solitary confinement, the Superintendent while certifying the execution of the sentence on the warrant shall also state the total period of solitary confinement undergone by the prisoner and shall record the reason if any portion has not been executed. 221