Hi

NIOS board is accepted everywhere within the country and abroad. However you also have to meet the eligibility criteria for the courses in the institute where you are applying which varies from institute to institute and country to country. You can only take admission in a MBBS or a medical degree course abroad provided you have a eligibility certificate which is mandated by the medical council of India .

The website states

"he/ she had obtained ‘Eligibility Certificate’ from the National Medical Commission (or the erstwhile Medical Council of India) as per the ‘Eligibility Requirement for taking admission in an undergraduate medical course in a Foreign Medical Institution Regulations, 2002’. This requirement shall not be necessary in respect of Indian citizens or Overseas Citizens of India who have acquired the medical qualifications from foreign medical institutions or have obtained admission in foreign medical institution before 15th March 2002."

Furthermore the website also states " that the 2018 notification to the Screening Test Regulations clearly states that all Indian Citizens/Overseas Citizen of India who have obtained a primary medical qualification from any Medical Institution outside India have to qualify the prescribed Screening test for purposes of obtaining registration in India in addition to fulfilling other eligibility criteria stated in the regulations. It is to clarify that the National Medical Commission does not endorse any list of Foreign Medical Institutions/ Universities for MBBS or equivalent course. The public at large is advised that before taking admission in MBBS or its equivalent course in a university outside India, confirmation of the fee structure, details of the course (which should be commensurate with the MBBS courses in India such as content, duration and internship) etc. should be directly obtained from the University/ Institution concerned."

After getting a primary medical qualification /MBBS from a foreign university if the candidate wants to pursue further education in India or wants to practice medicine in India they will have to appear for a MCI screening test/FMGE mandatorily.

Only those candidates are exempted from the screening test who hold an Undergraduate medical qualification from Australia/Canada/New Zealand/United Kingdom/United States of America and the holder thereof also been awarded a Post Graduate medical qualification in Australia/Canada/New Zealand/United Kingdom/United States of America and has been recognized for enrolment as medical practitioner in that country.

Except this countries all the graduates from other countries have to give the screening test.

FMGE is conducted biannually.

For more on the rules and regulations refer this link

https://www.nmc.org.in/information-desk/for-students-to-study-in-abroad/

Hope this answers your query!