The move came after Home Ministry found that Research Visas, given to professors, scholars and participants to do research work and attend research conferences, are being allegedly misused by several foreigners in recent past.
"All research visa applications will be thoroughly scrutinised. An applicant has to submit a brief note in advance about the project in which the research work will be conducted. If we find it appropriate, non-controversial and beneficial to India, then only the applicant will be given a visa," a senior Home Ministry official said.
Several foreigners had worked in NGOs, including Greenpeace India, and were alleged to have been involved in anti-government activities.
Home Ministry has found that many of the foreigners come to India on Tourist Visa and later get involved in research works and NGOs dealing with environment and human rights issues.
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"Such trends have to be stopped. We will not allow anyone misusing the tourist visa provisions too," the official said.
Visa applications of foreign scholars who take scholarships from Indian Council for Cultural Relations for conducting research will also be processed without any difficulty.
The ICCR offers scholarships namely General Cultural Scholarship Scheme, Silver Jubilee Nepali Scholarship, Africa Scholarships, Commonwealth Scholarship Scheme etc.
According to an estimate, around 42,000 foreign students study in India of which nearly 3,800 are research scholars. Most of the foreign students belong to Nepal, Bhutan, Afghanistan and Iran.