Hello, First you need to sort out the institutes you are applying to. You can use QS ranking for this and check out the admission process for each institute. You will be needing a statement of purpose, Language exam score and recommendation letters apart from your marksheets. So first you need to take the IELTS or TOEFL test whichever is accepted in those universities. Each institute will have its own selection process which usually involves selection from the application and followed by interview. Your grades, language scores is what makes you eligible for the application process itself and your achievements in co or extra curricular and statement of purpose will get you extra brownie points. Applying for a minimum of 5 to 10 institutes is advisable. You can check out this link to more details in the process for studying abroad https://www.careers360.com/articles/study-abroad-countries-courses-tests-visas-more

Best wishes.