The legislative mandate engrafted in sub section 1 of Section 197 debarring a court from taking cognizance of an offence except with the previous sanction of the Government concerned in a case where the acts complained of are alleged to have been committed by a public servant in discharge of his official duty or purporting to be in the discharge of his official duty and such public servant is not removable from office save by or with the sanction of the Government, touches the jurisdiction of the court itself. It is a prohibition imposed by the statute from taking cognizance. Different tests have been laid down in decided cases to ascertain the scope and meaning of the relevant words occurring in Section 197 of the Code: any offence alleged to have been committed by him while acting or purporting to act in the discharge of his official duty. The offence alleged to have been committed must have something to do, or must be related in some manner, with the discharge of official duty. No question of sanction can arise under Section 197, unless the act complained of is an offence; the only point for determination is whether it was committed in the discharge of official duty. There must be a reasonable connection between the act and the official duty. It does not matter even if the act exceeds what is strictly necessary for the discharge of the duty, as this question will arise only at a later stage when the trial proceeds on the merits. What a court has to find out is whether the act and the official duty are so interrelated that one can postulate reasonably that it was done by the accused in the performance of official duty, though, possibly in excess of the needs and requirements of the situation Thus, from a conspectus of the aforesaid decisions, it will be clear that for claiming protection under Section 197 of the Code, it has to be shown by the accused that there is reasonable connection between the act complained of and the discharge of official duty.