How much % will be require in class 12th???????? and an in which subject 70+ mark is require require. rrrequire? rerrequirerequire?

First check if you're suited for Animation. Animation is an art form and a very demanding career. It has ample opportunities for the creatively talented people. Typically you should have good sketching skills to be able to make a sound career in this. More people with good drawing skill succeed here