There are no official languages in Mauritius. here are two official national languages: French and English. On the island, you'll also hear a variety of other languages, including Mauritian Creole.
Programs are available in a variety of languages. You might need to show proof of your language skills if you decide to study in a language other than your mother tongue. Check with the institution while submitting your application as this varies every organization.
You should try to learn as much French, English, and Creole as you can, even if you study in a language that you are comfortable with. The best approach to practice is to converse with locals and other students. Your CV or resume will look fantastic with this expertise!