If you want to pursue MBA from universities abroad, you need to have a good GMAT score along with TOEFL/IELTS score.
Graduate Management Aptitude Test or GMAT is a computerised test in English and Mathematics to check skills and aptitude of candidates seeking admission in business schools of English speaking countries.
International English Language Testing System (IELTS) is a globally accepted test to check English communication skills of students pursuing higher studies abroad or seeking job opportunities abroad.
Test of English as Foreign Language (TOEFL) is conducted to assess the English proficiency of students who want to study abroad.
Admission to any institute abroad varies from country to country. The admission and the eligibility criteria depend upon the requirement of universities or institutions of different countries where you want to apply.