About Sanjeev Kumar (Rishi Sir) — Physics Teacher for NEET & IIT-JEE
Sanjeev Kumar, affectionately called Rishi Sir by thousands of students across India, did not plan to become a teacher — he became one because he saw a problem no one was solving. Growing up with a deep passion for physics, he completed his M.Sc. in Physics with a Gold Medal, and quickly realised that the way physics was being taught in most coaching institutes was fundamentally broken. Students were handed formulas, given a few solved examples, and expected to perform in one of the most competitive exams in the world. The result was predictable — most students feared physics rather than understood it.
That realisation drove him to join Aakash Institute in 2009, one of India’s most respected coaching brands for NEET and IIT-JEE preparation. Those early years at Aakash were formative — teaching hundreds of students every year sharpened his instinct for exactly where students got stuck, which concepts caused the most confusion, and what kind of explanation actually made things click. He went on to teach at Pathfinder and Narayana as well, two more institutes with a national reputation for producing top rankers in medical and engineering entrance exams. Each institution added a new dimension to his teaching — different student profiles, different city backgrounds, different exam pressures — and Rishi Sir absorbed it all into a teaching style that is now unmistakably his own.
His approach can be described in one line: understand the concept first, and the formula will follow. In every class, Rishi Sir starts by explaining the physical reality behind a topic — why an object moves the way it does, what actually happens in an electric field, why light bends when it enters a denser medium. Only after a student has that mental picture does he introduce the mathematical framework. This order — concept before formula — is the opposite of how most coaching institutes teach, and it is the reason his students consistently outperform expectations in numericals and application-based questions, which are precisely the questions that decide ranks in NEET and JEE.
Over 15 years and more than a thousand students later, Rishi Sir runs BestPhysicsTeacher.in — a platform that brings this same teaching directly to students across India and abroad through live online classes. Students from Delhi, Noida, Mumbai, Bengaluru, Kolkata, Hyderabad, Chennai, Patna, and even cities like Dubai and Singapore attend his sessions every week. The classes are live, which means real-time doubt solving, and every session is recorded so students can revisit any concept before a test. Beyond the classroom, Rishi Sir is personally available on WhatsApp for doubt clearing and progress updates — a level of accessibility that no large coaching institute can match.
He teaches physics for IIT-JEE Mains, IIT-JEE Advanced, NEET-UG, and BITSAT, as well as CBSE and ICSE students from Class 9 to Class 12. For students who are repeating a year, his dropper batch is specifically designed to rebuild both concept clarity and exam-day confidence from scratch. Whatever the starting point, the goal is always the same — by the time a student walks into the exam hall, physics should feel like the subject they are most confident about, not the one they are most afraid of.
If you want to experience this teaching for yourself, a free demo class is available. One session is usually enough to understand why students who join Rishi Sir’s classes rarely look elsewhere.
