If you search “best physics teacher in India” in 2026, you will find dozens of names — YouTube educators with millions of subscribers, Kota coaching legends, IIT alumni who turned to teaching, and online platforms that claim to have the best faculty in the country. Every one of them has a reason to be on that list. This page is not about dismissing any of them. It is about one specific thing: what makes Sanjeev Kumar (Rishi Sir) the right choice for a student who wants to genuinely understand physics — not just clear the exam, but walk out of it knowing they earned every mark they got.

Sanjeev Kumar (Rishi Sir) holds an M.Sc. in Physics with a Gold Medal — not a participation certificate, but a rank-based academic distinction that places him among the top performers in his university cohort. He began his teaching career at Aakash Institute in 2009, one of India’s most recognised names in NEET and IIT-JEE coaching, where he taught thousands of students across batches over several years. He subsequently taught at Pathfinder and Narayana — two more institutions with national reputations for producing consistent top rankers in medical and engineering entrance exams. Across all three institutions, he was not a junior faculty member covering easy chapters. He handled the full Class 11 and Class 12 Physics syllabus for NEET and JEE batches — Mechanics, Electrodynamics, Optics, Modern Physics, everything — in a high-stakes environment where results were tracked batch by batch and faculty accountability was real. That is the background that BestPhysicsTeacher.in was built on — not a YouTube channel that scaled into coaching, but a career built entirely inside India’s most competitive academic preparation system.

What separates a genuinely great physics teacher from a competent one is not how much they know — it is how clearly they can explain what they know to a student who does not. Rishi Sir’s teaching philosophy, which he has refined over 15 years and thousands of students, can be described in one principle: concept before formula, always. In most coaching institutes — including the large ones where Rishi Sir spent years before starting independently — the standard approach is to introduce a formula, show two or three solved examples, assign problems, and move on. This works for students who already have strong conceptual instincts. It fails — consistently and predictably — for the majority of students who need to understand why something is true before they can use it reliably under exam pressure. Rishi Sir reverses the order. Before a student in his NEET Physics batch ever writes the formula for capacitance, they understand physically what a capacitor is doing — why charge accumulates, what the electric field between the plates represents, and what happens when a dielectric is inserted. Before a student in his JEE batch attempts a Rotational Motion problem, they have a clear mental model of what moment of inertia actually means physically, not just mathematically. This grounding takes more time at the start of a chapter. It pays back many times over when the exam presents a question that is slightly different from anything the student has seen before — which is exactly what both JEE Advanced and NEET are designed to do.

The second thing that distinguishes Rishi Sir’s teaching is his depth of previous year question analysis. Over 15 years of teaching the same syllabus for competitive exams, he has personally worked through every JEE and NEET Physics paper from the past 15 years, chapter by chapter, and identified the exact patterns in how each concept is tested. This is not something a teacher picks up from a book — it comes from years of sitting with a paper after an exam and asking: what concept was this question actually testing, and why did my students get it wrong? That analysis is built into how he teaches every chapter. Students do not just practice previous year questions — they are taught to recognise, within the first reading of a question, which concept it is targeting and what approach will reach the answer with the least risk of error. This is the difference between a student who scores 120 in JEE Mains Physics and one who scores 90 — not effort, not even intelligence, but the ability to read a question and know immediately what to do. Rishi Sir teaches this skill explicitly, not as something students are expected to develop on their own through repeated practice.

The third pillar is structured testing and feedback. After every chapter, students take a chapter test — in competitive exam format for NEET and JEE students, in board exam format for Class 11 and 12 board students. Monthly full-length mock tests in both formats track overall progress and reveal which chapters still have gaps. After every mock, Rishi Sir personally reviews the most common errors across the batch and addresses them in the next class. This means students are not repeating the same mistakes month after month — errors are caught early, their source is identified, and the underlying concept is retaught with a different approach if necessary. This feedback loop is the closest thing to a guarantee in physics preparation: if a student attends every class, takes every test seriously, and uses the error reviews honestly, their score will improve. The only students who do not improve are the ones who stop showing up.

Sanjeev Kumar (Rishi Sir) teaches Physics for IIT-JEE Mains and Advanced, NEET-UG, BITSAT, CBSE Class 11 and 12, and ISC (ICSE) Class 11 and 12. He also teaches students following the IB Physics curriculum. All classes are conducted live online, with every session recorded so students can revise at any time. Doubt clearing happens within every live session and additionally on WhatsApp directly with Rishi Sir — not through a doubt portal, not through a junior faculty member, but with the teacher himself. Batch sizes are kept deliberately small so that this level of personal access is actually meaningful. Students attend from Delhi, Noida, Indirapuram, Gurugram, Mumbai, Bengaluru, Kolkata, Hyderabad, Chennai, Patna, and international locations including Dubai and Singapore. Geography has not been a barrier since the shift to live online teaching, and the quality of learning is identical regardless of where a student is sitting.

A free demo class is available for every new student. One session — covering one complete topic from whichever chapter is relevant to where the student currently is in their preparation — is enough to understand whether this is the right fit. To book a demo or enquire about the current batch schedule and fee structure, contact Sanjeev Kumar (Rishi Sir) directly on WhatsApp at +91 88823 82572 or at info@bestphysicsteacher.in.

Frequently Asked Questions — Best Physics Teacher in India

Q1: What makes Sanjeev Kumar (Rishi Sir) different from other physics teachers in India? 

The clearest difference is teaching approach and accountability. Rishi Sir’s concept-first method — building physical understanding before introducing mathematical frameworks — produces students who can handle unseen questions, which is the skill that determines rank in JEE and NEET. Beyond method, the personal access — direct doubt clearing with Rishi Sir himself on WhatsApp, small batch sizes, and personalised error feedback after every mock test — is something large coaching institutes structurally cannot provide.

Q2: Is Rishi Sir only for JEE and NEET students, or also for board exam students? 

Both. Rishi Sir teaches Class 11 and Class 12 Physics for CBSE and ISC board students alongside competitive exam batches. The board preparation runs simultaneously with competitive exam preparation through the same syllabus, so students preparing for both do not need to divide their time between two coaching environments.

Q3: What are Rishi Sir’s qualifications? 

Sanjeev Kumar (Rishi Sir) holds an M.Sc. in Physics with a Gold Medal. He has over 15 years of teaching experience, beginning at Aakash Institute in 2009 and subsequently teaching at Pathfinder and Narayana. He has taught thousands of students across NEET, IIT-JEE, CBSE, ICSE, and IB Physics throughout his career.

Q4: Are online physics classes as effective as offline coaching? 

For most students, yes — and in some respects more so. Live online classes allow real-time interaction and doubt clearing exactly as offline classes do. Recorded sessions add something offline classes cannot: the ability to revisit any explanation before a test. The absence of commute time also means students arrive at class without fatigue, which improves attention and retention. The only thing online classes require that offline classes do not is self-discipline in maintaining a study schedule at home.

Q5: How long does it take to see improvement after joining? 

Most students notice measurable improvement in chapter test scores within 4 to 6 weeks. Improvement in full mock test scores typically becomes consistent after 2 to 3 months, once a meaningful portion of the syllabus has been covered with the new conceptual approach. The timeline depends on where the student is starting from and how consistently they are practising between sessions.

Q6: How do I book a free demo class? 

Contact Sanjeev Kumar (Rishi Sir) on WhatsApp at +91 88823 82572. A demo session covering one complete topic will be scheduled at a convenient time. There is no obligation to enrol after the demo.