Ashwin, you can check the syllabus for VITEEE at our page: https://engineering.careers360.com/articles/viteee-syllabus . Along with Physics, Chemistry, Biology and Mathematcis, there are  also English and Aptitude Sections. If you are in 11th right now, ou will be technically appearing for your 12th in 2021. Because of the reduced Academic year, the syllabus might be reduced for the entrance examination. So the plan should be to stick to your 11th and 12th NCERT books and diligently follow the classes. At this point in time, your focus should be your class books and not anything beyond because if the syllabus is reduced, you do not want to waste your time reading those subjects that might have not been included in the syllabus. And you should focus on Comprehension, Grammar, Punctuation to suit the level of 12th for English section. Under Aptitude, you should focus on Data Interpretation, Data sufficiency, Syllogism, Number series, Coding and Decoding, Clocks, Calendars and Directions.