[(1)] No court shall take cognizance of any offence—
(i) under Chapter III without the previous sanction of the Central Government or any officer authorised by the Central Government in this behalf;
(ii) under Chapter IV and VI without the previous sanction of the Central Government or, as the case may be, the State Government, and 2[if] such offence is committed against the Government of a foreign country without the previous sanction of the Central Government.
[(2) Sanction for prosecution under sub-section (1) shall be given within such time as may be prescribed only after considering the report of such authority appointed by the Central Government or, as the case may be, the State Government which shall make an independent review of the evidence gathered in the course of investigation and make a recommendation, within such time as may be prescribed, to the Central Government or, as the case may be, the State Government.]