The Central Government may, by notification in the Official Gazette, direct that the provisions of this Act Act shall apply to a country or place outside India as may be specified in the notification. If the notification under sub-section relates to a country or place outside India with which a treaty has been entered into by India for the transfer of prisoners between that country and India, then, such notification shall also set out the full text of the said treaty and shall in no case remain in force longer than the period of the said treaty.  If the Central Government is of the opinion that, with respect to a country or place outside India, provisions of this Act require to be modified to give effect to a treaty in relation to such country, it may, by notification in the Official Gazette, direct that the application of this Act to such country shall be subject to such conditions, exceptions and modifications specified in the notification. Any prisoner who is a citizen of a contracting State may make an application to the Central Government for transfer for transfer of his custody from India to that contracting State :By a prisoner  Provided that if a prisoner is not able to make an application himself because of his ill health, mental condition, old age or being a minor, then, the application may be made by any other person entitled to act on his behalf. 

Repartation of Prisoners Rules, 2004