SAT Preparation

Here are some resources available to prepare for SAT.
https://studyabroad.shiksha.com/exams/sat/best-books-and-resources
You can get the books online or at bookstores.

Hey there, i am in the same stage, like i am into twelfth now and i am preparing for IIT and also wish to appear for SAT. I think preparing for jee gets u through for the math section in SAT if u check the papers. English needs some attention. Work on that before appearing for the exam, solve papers. Maybe it would work out well.

Here are a few good resources for SAT preparation
https://studyabroad.shiksha.com/exams/sat/best-books-and-resources

Take up some coaching as it will train you well as the pattern has changed recently. Before that you may take up some mock test and check your level.

Hi
SAT is required only for undergrad, for master's you should prepare GMAT and TOEFL / IELTS anf get atleast 7 band score to be in a good college. Also, take some internships to make your profile complete as mba in most of the countries requires some work experience too.
Hope this suffice.

At least one hour a day as per your convenience.

Hi
Akshat
Its so good to see you planning at the right time. If you are planning for MIT, start creating an excellent profile by participating in science projects, Olympiads and other co curricular activities as they look for an all rounder. To prepare for SAT or ACT you must take coaching as they train you on certain tricks n tips to perform better. In addition to this, community services is also essential. But keep academics on the top.