Dear Aspirant

Hope you are doing well

Now let me go through your question

The syllabus of NEST Exam is based on your 11 and 12 subjects. NCERT Textbooks and E xemplar are considered as best books for basic preparation. You may practice Concepts of Physics By HC Verma , RD Sharma for Mathematics, OP Tandon for Inorganic Chemistry, Truman Vol 1 and 2 for Biology and previous year paper

If you want to know more about like dates ,sample paper then visit the link https://university.careers360.com/articles/nest-exam-pattern

Hope it helps

Thank you