Extra-territoriality
Do national regulators enforce rules against entities operating abroad?

India
The Key Prize Legislations do not have an extra-territorial application and prize promotions which are purely operated online and outside India do not fall within the jurisdiction of the relevant regulators of Key Prize Legislations in India.
However, if prize promotions are advertised to customers in India and a significant nexus is established in India, then regulators may enforce the relevant laws (including Key Prize Legislations) against the promoters of such prize promotions.
The Indian Penal Code, 1860 and Information Technology Act, 2000 have extraterritorial applicability and in the event that sponsors of prize promotions are held to be in violation of these laws, the regulator is empowered to prosecute for offences committed outside India. The Indian regulators also have the power to block foreign websites which violate Indian laws.