The Extradition Act,1962
4. Requisition for surrender.
A requisition for the surrender of a fugitive criminal of a foreign State or a commonwealth country may be made to the Central Government-
(a) By a diplomatic representative of the foreign State or commonwealth country at Delhi; or
(b) By the Government of that foreign State of commonwealth country communicating with the Central Government through is diplomatic representative in that State of country;
And if neither of these modes is convenient the requisition shall be made in such other mode as is settled by arrangement made by the Government of the foreign State of commonwealth country with the Government of India.
