Concept first
Every topic starts with the “why” before the formula. Once the idea makes sense, revision becomes recall instead of memorising.
India's free science classroom
Learn science with clarity.
Score with confidence.
Meet Prashant Kirad — “Prashant Bhaiya” to millions of students. Through ExpHub, he turns dense CBSE chapters into simple, exam-ready lessons, free notes and question banks that help learners study smarter, not longer.
12.4M+
YouTube subscribers
1.6B+
lesson views
Prashant Kirad
Educator · Author · ExpHub
12.4M+
ExpHub subscribers
8.3M+
9th & 10th subscribers
1.6B+
Combined video views
6+ yrs
Free online teaching
Audience figures are approximate and were last checked in October 2026.
Free study library
Pick your class. Start revising.
Chapter notes, most important questions and high-weightage topics — organised so you spend time studying, not searching.
All resources are free to read. Some downloads open the original file hosted by the creator.
Prashant Bhaiya
Making CBSE science feel simple since 2020.
About the educator
The teacher behind ExpHub
Prashant Kirad is an Indian educator, author and ed-tech entrepreneur from Alwar, Rajasthan. He completed a B.Tech in Computer Science at NSUT (formerly NSIT), Delhi — and somewhere between lectures and lab reports, discovered that explaining a difficult concept until it suddenly “clicks” was the work he loved most.
That side-project became ExpHub, one of India's largest free science classrooms. His lessons pair a concept-first explanation with the exam pattern: what tends to be asked, how marks are awarded, and which mistakes quietly cost students five marks. A second channel, ExpHub 9th & 10th, does the same for foundation classes.
In 2023 he co-founded Next Toppers with fellow educators Shobhit Nirwan and Digraj Singh Rajput, and in 2024 he partnered with Educart to publish the One Shot Question Bank for CBSE Class 10 Science.
- Hometown
- Alwar, Rajasthan
- Education
- B.Tech, CSE · NSUT Delhi
- Channels
- ExpHub · ExpHub 9th & 10th
- Published book
- One Shot Question Bank
Why students stay
A teaching style built for real exam halls
No jargon, no skipped steps, and no pretending that every chapter matters equally.
Exam-targeted
Lessons point straight at CBSE patterns — high-weightage topics, marking schemes and the one-line answers examiners reward.
Free by design
Full lessons and notes stay open to every student. Your family's budget should never decide whether you get a clear explanation.
Momentum matters
Short, honest pep talks about backlogs, low marks and burnout sit alongside the syllabus — because motivation is part of the method.
The journey
From an engineering hostel to millions of screens
A short timeline of the milestones that shaped ExpHub.
College years
Teaching begins at NSUT
While studying Computer Science at NSUT Delhi, Prashant starts explaining science and maths to juniors — first in hostels, then to small groups online.
2020
ExpHub is created
The ExpHub YouTube channel is set up during a year when classrooms moved online, with a simple promise: free, clear science lessons for students who cannot afford coaching.
2021
The first lessons go live
Class 10 science revision videos begin reaching students across India. The “Prashant Bhaiya” style — patient, funny, exam-aware — starts to travel by word of mouth.
2022
ExpHub 9th & 10th launches
A second channel is created for foundation classes, giving younger students their own space for chapter basics and school-exam practice.
2023
Next Toppers is co-founded
Prashant teams up with Shobhit Nirwan and Digraj Singh Rajput to build structured courses, test series and mentorship for CBSE learners.
2024
One Shot Question Bank publishes
With Educart, he releases an affordable CBSE Class 10 Science question bank built around chapter-wise important questions and previous-year patterns.
2025–26
A 20-million-strong study community
The two ExpHub channels together pass 20 million subscribers and more than 1.6 billion views, while the notes archive keeps growing.
The book
One Shot Question Bank
Built with Educart, the One Shot Question Bank grew out of the questions students kept asking in the comments: “Bhaiya, is this question important?” Instead of a full textbook, it gives Class 10 students a focused set of chapter-wise important questions, previous-year patterns and competency-based practice.
- Chapter-wise NCERT important questions
- Previous-year and competency-based questions
- Designed for quick revision before boards
This is an Amazon affiliate link. The price you pay does not change.
Watch and learn
Two channels, one goal: fewer confusing chapters
Subscribe to the channel that matches your class and start with the revision playlist.
ExpHub – Prashant Kirad
12.4M+ subscribers · 390+ videos
Subscribe
ExpHub 9th & 10th
8.3M+ subscribers · 300+ videos
SubscribeJoin the study community
Get updates about new notes, sample papers, PYQs and revision schedules on Telegram.
Open Telegram channelInside the classroom
How a Prashant Kirad lesson is built
The format is consistent on purpose — familiarity frees up attention for the science.
01
Start with the paper
Before teaching a chapter, the exam pattern decides the order: which topics carry marks and which are only context.
02
Explain it plainly
Definitions are translated into everyday language, diagrams are drawn slowly, and derivations are broken into visible steps.
03
Close the loop
A lesson only ends after practice questions and a quick recall check, so you leave with proof that the idea stuck.
Questions, answered
Frequently asked about Prashant Kirad
The quick answers students search for most often.
Who is Prashant Kirad?
Prashant Kirad — “Prashant Bhaiya” to his students — is an Indian educator, author and ed-tech entrepreneur from Alwar, Rajasthan. He studied Computer Science at NSUT Delhi and created the ExpHub YouTube channels, which publish free CBSE science lessons for millions of learners.
What is ExpHub?
ExpHub is Prashant Kirad's free online learning community. The main channel, ExpHub – Prashant Kirad, covers Class 10 science, revision strategies and exam guidance. ExpHub 9th & 10th focuses on foundation classes.
Are his videos and notes really free?
Yes. The YouTube lessons are free to watch, and the notes, most important questions and revision guides collected on this site are free to read. Some downloads open files hosted by the original creator.
What is the One Shot Question Bank?
It is a CBSE question bank written by Prashant Kirad with publisher Educart. It focuses on chapter-wise important questions, previous-year patterns and competency-based practice for board exams — a revision companion rather than a textbook.
Which classes does he teach?
He is best known for CBSE Class 9 and Class 10 science, with additional resources for Class 11 physics, chemistry and biology. His videos also cover study planning and exam strategy.
Why is he called “The Paper Leaker”?
It is a student nickname — not a reference to any real leak. Students gave it to him because his revision material and question banks cover high-probability exam topics so thoroughly that the paper feels familiar.
Where can I download Prashant Kirad notes?
Start at the notes library. You can choose Class 9, 10 or 11 and then open chapter-wise notes, MIQ lists and important-topic guides. Everything is linked from the study hub above.
Is this website official?
No. This is an independent, fan-built educational resource created by Bazid Ahmed Laskar. It is not affiliated with Prashant Kirad, ExpHub or Next Toppers. For official updates, follow the channels linked on this page.
Your next revision session starts here.
Open a chapter, read the key points, then test yourself with the most important questions.