Yes, English proficiency is a core requirement. If your graduation was completed in any medium other than English, you are required to take an English proficiency test like TOEFL, IELTS, or NELT (National English Language Test). You must submit these scores to the IBS admissions office by May 31, 2027. Failure to meet the required score or provide proof of English-medium education will lead to the cancellation of the admission offer.