Animator

It depends on many things , such as the institutes which are continuously giving best services , or new comers who are up with all updated infra and better facilities , some of which are very old with not so good infra but with the best faculties , some are reasonable service provider in considerably reasonable price , so many parameter.
From my past experience , i would not like to suggest any one to opt for a university course on animations , specially in INDIA , i have seen students suffering because of the lack of communication between the institute & the university , Rather i would suggest one to continue any graduation ( distance program - Under University & UGC recognition ) & simultaneously, go for a 3 years professional diploma or masters course offered by the institutes on their own certification, that would be far better option
I feel for this you must personally visit the institutes and take a decision.

Aruna S,
Take the creative subjects or arts or languages. I would recommend that as you study for your 10+2, you start practicing sketching to begin with. Try to observe things closely and sketch them. You can also buy good sketch books from the market for sketching including shading, shadows, and human figures.
However, soon you may have to upgrade to more serious books like "The Animator's Survival Kit" by Richards William. Psychology and Literature are two useful subjects. Try to participate in writing, drawing/ painting, sports, dramatics, music, singing etc. whatever is possible for you.
If any good Life Art or Method Art Classes are available in your neighborhood, then take those classes (if you are near Chandigarh, then I can recommend some). Later on, you may take up a course in Multimedia and animation or in design and graphics. Animation draws the best out of a Creative Person. It offers a person to indulge in music, design, acting, direction, camera, voice design, character design etc.
Wish you the best for your career. Remember, your Career is a resultant of your knowledge combined with your passion and expression ability. If you like this answer, you may select it as best answer or press like.