As a Person
A Teacher, Mentor, Trouble Shooter And A Good Person
As a Teacher he is being loved by his students so much that they show unbreakable bond with him even after many years
What You Can Get Here ?
Prateek Sir Notes, Lectures, Mind Maps, Strategies and Dedicated Courses
Free Lectures
Learn Biology with Clarity and Confidence! Join Prateek Sir’s Free Lectures and experience Biology the way it should be – clear, focused, and straight from NCERT. Perfect for NEET, CUET, and Boards.
Lecture Notes
📝 Prateek Sir’s Lecture Notes are crisp, NCERT-focused, and exam-oriented – perfect for quick revision and concept clarity.
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Study Buddy Shareline
Study Buddy Shareline is your academic companion – a place to ask, answer, and grow together through shared learning. 💬 Join a community where doubts meet solutions, and every student becomes a study buddy.
About Prateek Sir Biology
Prateek Sir Biology is not just a website or channel. It’s a promise. A quiet promise made to students who once felt lost……who sat in classrooms filled with doubts, …who opened NCERT books but couldn’t connect to the life inside them. I didn’t start this journey with big equipment or a grand vision.
What Prateek Sinha Sir has to say?
I started it with one thought: “If even one student can truly feel biology through me… it’ll all be worth it.”
In the beginning, I was unsure about it. I had, just one thing: A deep love and emotional connection to every student trying to find their way through the chaos of competition and expectations.
And slowly, the messages started coming: “Sir, for the first time, I understood what life means.”
“Genetics isn’t just a unit or chapter anymore — now it’s magic which I can perform”
“Because of you, NEET doesn’t feel like fear anymore.”
That’s when I knew —
This is not about chapters, marks, or numbers. It’s about healing fears, igniting curiosity, and helping students find confidence in clarity.
🌿 What We Believe:
- Biology isn’t a subject. It’s the story of life.
- Every student matters. Whether Hindi or English medium, dropper or fresher — here, everyone is seen.
- Teaching isn’t a profession. It’s a purpose — rooted in heart.
Today, Prateek Sir Biology is built not on views, but on trust. Not on metrics, but on the emotional messages, the tears of gratitude, the late-night “thank you” notes from students who once doubted themselves.
And for me, That is everything. That is why this channel exists. That is why it will never stop.
YouTube Channels & Series
📚 Prateek Sir Biology – Channel Description:
Where concepts come alive, not just memorised. Prateek Sir Biology is your trusted space for NCERT line-by-line clarity, NEET-focused MCQs, and deep understanding of life sciences — in both Hindi and English.
Join us where we don’t just study Biology but truly understand…
Ontesta – Channel Description:
Welcome to OnTesta, a science-powered platform for curious minds and deep thinkers. From physics to chemistry, biology to big ideas — we break down concepts with clarity, creativity, and storytelling. Perfect for students, science lovers, and anyone who loves asking “Why?” Explore science… the Ontesta way.
Class 11th NCERT Line To Line Series
Class 12th NCERT Line To Line
About Prateek Sir
Know More About Prateek Sinha Sir
His Teaching Notes
Eye Catching and Easy to Learn
Every page of Prateek Sir’s notes feels like a roadmap — precise, purposeful, and perfectly aligned with the ,exam. His notes don’t just summarize chapters, they simplify the toughest concepts with clarity and confidence. With diagrams that speak and highlights that guide, his notes are a student’s best ally in the battle for success.
Go Beyond Deep Concepts
For Mature Knowledge Seekers
👁️ Hey, Ontesta here.
Have you ever wondered… why we feel forces but can’t see them?
Or why DNA is just a molecule, but it builds you?
What if the periodic table was nature’s secret codebook… and maths, the language the universe whispers in?
At Ontesta, we don’t just teach Physics, Chemistry, Biology, or Maths —
we unfold them.
Layer by layer. Thought by thought. Until you start thinking like nature itself.
Welcome to Ontesta — where curiosity meets concepts.
Join Study Buddies
A Community for Dedicated students
Study Buddy Shareline is a Community for Students initiated by Prateek Sinha Sir. You will also Find Free and Paid Audio Courses here
What Students Has To Say
If you are also Prateek Sir Student, You can also send your review about Prateek Sir to the Mail Id - prateeksirbiology@gmail.com
Megha
Batch 2019
The best part of Prateek Sir … You can literally teach after learning from him
Raghav Gupta
Batch 2022
I miss your teaching style sir…And thanks for coming online
Divya Jahangir
Batch 2024
Botany sir aapki wajah se hi Samajh aayi sachchi ,,,and thanks you mere share zoology k bhi doubts solve krna k liye
Tanushree Bhattacharya
Batch 2021
Best faculty for botany in Indore Allen….Sir you left Indore but Indore will never leave you
Sadar Tauqir
Batch 2018
Tuiche thk Sir ?? Kya aap Hume yard krte hain ?? I really like your teaching style
Shaista
Batch 2017
Great Sir… Always remember you
Rohit Patidaar
Batch 2024
sir online videos bht achche hain please continue that ncert line to line series