hi,

since time is less, I would suggest to cover your weak area of physics chemistry and mathematics first, also besides this prepare the old chapters and give revision from time to time. jee main exams are mcq based and it is quite difficult to make any suggestion. so it would be best to follow the past year trends of the questions as well as give mock test . best mcq books are tata mac graw hill publications physics , chemistry mathematics jee main mcq books.

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https://engineering.careers360.com/articles/most-important-chapters-of-jee-main