French is popular language you can study from apps namely Duolingo etc .

You can learn and give exam to become certified.

Like DILF ,DELF,DALF which are conducted by international center for french studies.

You can study from:

Lingoda

Ignou

JMI

Du

I.L.S.C language school

French language school

Learn more : https://www.careers360.com/courses/french-course

Hello

There are various courses in online education sites for learning french where you can learn french and also get certificate. There are also courses for undergraduate in french background.

For more details you can refer to the link :

https://www.careers360.com/courses/french-course

Hope the answer helps you

ALL THE BEST FOR FUTURE!