Hi Akshay,
Gaming Animation is a very good choice and is quite upcoming. Duration of such a course offered depends on college to college. Different colleges offer different types of gaming and animation courses and some are specific, some are short term courses and some are very detailed ones. So, it ranges from 6 months to 3 years.
But it is advisable to go for a degree courses as they hold value in long-term careers. One of the best courses offered for your option is B.A. (Honors) 3D Animation and Gaming. The course has a duration of 3 years and is offered by many private universities today.
Some good university options are
You can consider IILM University Gurugram for this good option as you will be able to display you work through end-of-term exhibitions along with reel and portfolio presentations here. And there is also concept of Liberal Education which lets you pursue your own passion and develop your skills. You can check more details about IILM here www.iilm.edu.in
Here are some of the animation colleges in India:-
Refer here for more info - https://design.careers360.com/colleges/list-of-animation-colleges-in-india?page=1
Feel free to ask doubts in the Comment Section.
I hope this information helps you.
Good Luck
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