Article 260 of Indian Constitution: Jurisdiction of the Union in relation to territories outside India.
Article 260 Jurisdiction of the Union in relation to territories outside India – Constitution Of India
The Government of India may by agreement with the Government of any territory not being part of the territory of India undertake any executive, legislative or judicial functions vested in the Government of such territory, but every such agreement shall be subject to, and governed by, any law relating to the exercise of foreign jurisdiction for the time being in force.