Dear Student,
We would need you to specify which country and college you wish to join to help find information on sponsorship and financial aid for international students since the answer largely depends on those two factors.
For example, there are many colleges and universities in the USA that offer need-based financial aid to accepted students and may fund up to 100% of a candidate's education. Candidates can also apply for the merit-based scholarships offered by the college as well as look for funding offered to international students by third party organizations in their country as well as in the country of their college/university.
For your reference, here is an article listing the top foreign scholarships for Indian students.
Thank you.