According to the Hindu Marriage Act, 1955, there is no specific time limit for filing a petition for restitution of conjugal rights. However, section 23 (1) (d) of the acts says that In any proceeding under this Act, whether defended or not, if the court is satisfied that there has not been any unnecessary or improper delay in instituting the proceeding, the court shall decree such relief accordingly, provided other requirements are also met.
Thus, while there is no strict time limit for filing such a petition, it's generally advisable to approach marital issues in a timely manner. When there is a delay in filing the case, the petitioner must provide a reasonable explanation for the delay to the court.