Hello Anumala Venkat Gopi Krishna
Yes, you can write AP EAMCET and JEE Mains again if you are not satisfied with your previous result. You can give the exam again and if you get a better college you can change your college but you'll have to start from 1st year again in the new college. Also you'll have to manage your college and preparations together so you will have a very hectic schedule so plan accordingly.
Hope it helps you.
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