20+ years of exam excellence, led by an IITian
TestPrepAdda was built on one belief — every student in India deserves the same quality of mentorship that was once available only to a privileged few. That belief drives everything Birendra Sir does.
2,40,000+
Students mentored
94%
Selection rate
20+
Years of excellence
1,200+
Practice tests
The vision of Birendra Sir — from IIT Roorkee to India's classrooms
TestPrepAdda is the vision of Birendra Sir — a B.Tech. graduate from IIT Roorkee with over 20 years of excellence in mentoring students for JEE, NEET, Olympiads, and BITSAT. Having seen firsthand how the right guidance transforms outcomes, he set out to make that guidance available to every student, not just those in metro coaching hubs.
What makes TestPrepAdda different is the rigour behind every teacher on the platform. Before any educator takes a single online class here, they go through an intensive training programme personally designed and conducted by Birendra Sir — ensuring every student gets the same standard of teaching he has refined over two decades.
Today we serve students across every state in India. Our adaptive mock tests, detailed solutions, and expert-curated study material are built on the same principles Birendra Sir has championed throughout his career: conceptual clarity, exam-accurate practice, and honest feedback.
Accessible to all
Core content is free. We believe financial constraints should never limit a student's potential.
Exam-accurate content
Every question is mapped to the latest syllabus and pattern. No filler, no outdated material.
Data-driven learning
Our analytics show you exactly where you're losing marks — so you fix the right things.
Expert-verified solutions
Every explanation is reviewed by subject matter experts who have cracked the exams themselves.
Founder & Chief Mentor
B.Tech — IIT Roorkee
Birendra Sir — 20+ years of shaping exam toppers
A B.Tech. graduate from IIT Roorkee, Birendra Sir has spent over two decades mentoring students for JEE, NEET, Olympiads, and BITSAT. His teaching philosophy — built on conceptual clarity, rigorous practice, and honest feedback — has guided thousands of students to their dream institutions.
Every teacher at TestPrepAdda undergoes an intensive training programme personally designed and conducted by Birendra Sir before taking a single online class. This ensures that every student on the platform experiences the same standard of mentorship he has refined over two decades.
20+ Years
of mentoring
IIT Roorkee
B.Tech. graduate
JEE · NEET
Olympiads · BITSAT
IITians and Doctors — trained by Birendra Sir
Every educator on TestPrepAdda goes through a rigorous training programme by Birendra Sir before taking a class — so you always get teaching that meets his standard.
IITian Physics Faculty
Physics — IIT graduate, trained by Birendra Sir
Specialises in electrodynamics, optics, and modern physics. Uses real-world analogies to build deep conceptual clarity — a hallmark of Birendra Sir's teaching philosophy.
IITian Chemistry Faculty
Chemistry — IIT graduate, trained by Birendra Sir
Organic and physical chemistry specialist. Reaction-mechanism approach and structured numerical frameworks help students crack the toughest JEE and NEET chemistry questions.
IITian Mathematics Faculty
Mathematics — IIT graduate, trained by Birendra Sir
Calculus, coordinate geometry, and combinatorics expert. Simplifies complex proofs into step-by-step frameworks students can reproduce confidently under exam pressure.
Doctor Biology Faculty
Biology — MBBS/MD, trained by Birendra Sir
NEET biology specialist focused on high-yield topics. Visual diagrams and structured revision notes help students master the breadth of the NEET biology syllabus.
IITian Physics & Maths Faculty
Physics & Maths — IIT graduate, trained by Birendra Sir
Mechanics and problem-solving specialist. Bridges conceptual understanding with exam strategy — exactly the approach Birendra Sir instils in every teacher at TestPrepAdda.
IITian Chemistry Faculty
Physical Chemistry — IIT graduate, trained by Birendra Sir
Electrochemistry and thermodynamics specialist. Structured approach to numerical problems built on the rigorous training framework Birendra Sir has developed over 20+ years.
Success stories
Real results from real students
“TestPrepAdda's mock tests were the closest thing to the actual JEE paper. The detailed solutions helped me understand exactly where I was going wrong. Birendra Sir's structured approach made all the difference.”
Aditya Kumar
JEE Advanced — Selected to IIT
“I was struggling with NEET Biology for two years. After joining TestPrepAdda, the chapter-wise tests and the doctors on the faculty helped me finally crack it. The teaching quality here is unlike anything else.”
Meera Pillai
NEET — Selected to Medical College
“The BITSAT practice tests here are the best I found anywhere. The IITian faculty really understand the speed and accuracy the exam demands. Cleared BITS Pilani on my first attempt.”
Rahul Verma
BITSAT — Selected to BITS Pilani