Hello aspirant,

YES, definitely any average student can go into IIT or top NIT's if he/she has the right determination and consistent practice towards his studies and examinations. If you have the dream to get into IIT, like several others,. then you have to grind yourself, practice hard and have to be consistent at your studies. You have to make a proper time table schedule and need to fix at it. if you are weak in calculations and solving numericals and other questions, then you have to work at your weak points and have to sharpen your strong points. Solve previous year Question paper and continue give Mock tests to know your potential.

Further, below I am suggesting some of the best tips and strategies that you can follow to make your preparation for the JEE mains and JEE advance exams :

Prepare A Well-laid Plan

Draft a daily schedule.

Prioritize the topics that require more time and relevant to the subject.

Stick to the routine and pay special attention to problems.

Get Hold Of The Syllabus

Manage your time effectively

Understand Basic Concepts

Before delving into JEE preparations, know the JEE syllabus and understand the basic concepts present in the syllabus.

Evaluate your knowledge on basic concepts.

Make notes on required topics.

Choose The Right Study Material

To know about the best books for JEE advance preparation you can follow the below mentioned link : https://engineering.careers360.com/articles/jee-advanced-preparation-tips

Solve JEE Advanced question papers

Solve previous years question paper has its own advantages, like

Helps you to understand the exam pattern.

Will help you in time management.

Helps to increase speed and accuracy.

Helps you to gain confidence.

Further, you can follow these below recommendations of books to ace your JEE preparation :

JEE Main Books Important for Mathematics

Trigonometry by S. L. Loney

Higher Algebra by Hall & Knight

Maths XI & XII by NCERT

Coordinate Geometry by S. L. Loney

Problems in Calculus of One Variable by I.A. Maron

JEE Main Books for Physics

Problems in General Physics by I.E. Irodov

Fundamentals of Physics by Halliday, Resnick & Walker

Concepts of Physics Vol I and II by H.C. Verma

Books for JEE Main Chemistry

Organic Chemistry by Paula Bruice Yurkanis

Organic Chemistry by Morrison & Boyd

Inorganic Chemistry by J.D. Lee

Numerical Chemistry by P. Bahadur

Further, For more information and complete details about the JEE mains tips and strategies and about the subject wise weightage in JEE mains, you can follow the belwo link :

https://engineering.careers360.com/articles/jee-main-preparation-tips

I hope that this will help.