The matter is related to section 468 of CrPC which deals with the Bar to taking cognizence after lapse of the period of limitation.
The period of limitation shall be :-
a) Six months if the offense is punishable with fine only
b) One year if the offense is punishable wiht imprisonment for a term not exceeding one year
c) Three year if if the offense is punishable wiht imprisonment for a term exceeing one year but not exceeding three years
for the purpose of this section of limitation, in relation to offense which may be tried together, shall be determined with reference to the offense which is punishable with the more severe punishment or, as the case maybe, the most severe punishment.
In your case it be seen the punishment of the offense u/s 51 and 52 of the wild life protection.