In section 51 of the principal Act,--
(i) in sub-section (1), for the words "within three years from the commission of such offence" occurring at the end, the following shall be substituted, namely:--
"within a period of three years from the commission of such offence and such period shall commence,--
(a) on the date of the offence; or
(b) where the commission of the offence was not known to the person aggrieved by the offence or to the authority competent to initiate action, the first day on which such offence comes to the knowledge of such person or authority; or
(c) where it is not known by whom the offence was committed, on the first day on which the identity of the offender becomes known to the person aggrieved by the offence or to the authority competent to initiate action,
whichever is earlier.
Explanation.--For the purposes of this sub-section, in the computation of the period of time mentioned in this sub-section, any time spent by such person, as a prisoner of war in the enemy territory, or in evading arrest, after the commission of the offence, shall be excluded.";
(ii) after sub-section (1), the following sub-section shall be inserted, namely:--
"(1A) Where a proceeding in respect of an offence has been stayed by an injunction or an order of a court, then, in computing the period of limitation under this section, the period of the continuance of the injunction or order, the day on which it was issued or made, and the day on which it was withdrawn shall be excluded.".