There is no such thing called as an international patent in this earth.
Patents are region specific and their rights obtained are bound by the national or territorial boundaries. A person in India shall file a patent in India and then file for different countries by filing a PCT application within 12 months from the date of filing the complete specification in India. Through a PCT application a patent applicant shall then file for rights in different countries or unions as per the WIPO and the respective fee is applicable for each country / territory / union. No Indian citizen can file for a foreign application directly without filing an application for patent in India unless special permission is obtained from the central government.
International patents from an Indian:
As the entire world marches towards India to sell their products to India, it is based on the need of a person to obtain rights in other countries where upon commercialization the creator can make more money in India compared to other countries.