FRRO registration is required for every tourist in India with visas that are valid for more than 180 days or 6 months. They have to register with the FRRO within 14 days of their arrival in the country. If in case you are not able to meet this guideline, your registration will be tagged as late and you would have to pay additional fees. The main job of the FRRO is to regulate and monitor the stay and tenure of foreigners in India.