Hey aspirant

JEE is one of the most competitive engineering entrance exam in India. Admission to NIT and IITs are based on jee rank. So you should keep a target of 95% to secure a seat in nit and iits. Syllabus is 11 and 12 physics, chemistry and maths. Understand the concept clearly. It's always better to go for a entrance coaching institute. Practice more and more questions.  Manage your time. Give more importants to chapters with more weightage. Learn new concept. Take ncert as a base and dig more into the concepts. For that use top and good books. Attempt mock test daily. Understand the pattern of question paper. Solve previous year jee question papers. By systemic planning and working hard you can crack jee.