All International travelers visiting India must possess a valid passport and can obtain necessary visa from Indian Embassies / Consulates in their countries. However traveling to certain areas requires special permission even if visitors have valid Indian visa. In case of traveling to nearby countries and when they need to enter India more than once, they must ask for double / multiple entry visas.
Tourist Visa: Usually a multi-entry visa is granted for the purpose of tourism.
Transit Visa: Transit visas are granted by Indian Missions abroad for a maximum period of 15 days.
Other Types of Visas : If a foreigner wishes to come to India for a purpose other than tourism, he/she should come after obtaining an appropriate visa out of the following:
Business Visa : A foreigner can obtain this visa from an Indian Embassy abroad.
Student Visa : A student visa can be obtained from the Indian Embassy on the production of proof of admission and means of sustenance while in India. The visa is valid for one year but can be extended in India for the duration of the course.
Conference Visa : Delegates coming to attend international conferences in India can be granted Conference Visas to cover the conference as well as for tourism in India Delegates are advised to apply to the Indian Embassies well in advance.
Missionaries : Valid for single entry and duration as permitted by the Government of India.
Journalist Visa : Journalist visas are given to professional Journalist and photographers for three months' stay in India.
Employment Visa : Employment visas are initially issued for one year stay. This can be extended by the Foreigners' Regional Registration Office in India, if the job contract continues. Spouses and children will get coterminous visas.
Exemption from Registration : Foreigners coming to India on tourist visas for 180 days or a shorter period are not required to register themselves with any authority in India. They can move about freely in the country, except to restricted/protected areas and prohibited places.