do i have to take SAT in 2021 ? where can i get complete guidance for my admission?
You don't have to with some colleges adopting policies that will make the college forever test-optional, but there are very few school's and as the colleges are going back to normal the SAT will become more of an important factor again. So in my opinion, yes you should take it and I would also take the ACT as well just in case. To answer your second question, This is a website that can help answer your question: https://www.mapmystudy.com/blog-complete-college-application-guide-through-experts-58. and also a link to the updated Harvard admissions process
https://college.harvard.edu/admissions/apply/first-year-applicants/application-requirements
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