Dhasu Sir, also known as Dhansu Sir, is a highly respected mathematics teacher who has gained significant recognition for his exceptional teaching style and expertise in the field. With his engaging and entertaining approach to mathematics education, he has captivated the hearts of students and viewers on platforms like YouTube. Dhasu Sir’s real name is Dalveer Nagar, and he was born in 1985 in Faridabad, Delhi.
He completed his education in Mechanical Engineering and has worked as a faculty member at renowned institutes such as adda247, Wifistudy, and Unacademy. Through his online presence and contributions, Dhasu Sir has become a trusted mentor for students preparing for various competitive exams, making mathematics accessible and enjoyable for learners of all levels.
Who is Dhasu Sir?
Dhasu Sir is an Indian maths teacher who has over 224k subscribers on his main YouTube channel. He also has another channel called Dhasu Sir Academy, where he provides live classes, e-books, mock tests, video courses, and exam notifications for various competitive exams. He also has an app with the same name on Google Play Store.
Dhasu Sir was born on 12 June 1990 in Faridabad, Haryana. He is Indian by nationality and practices Hinduism as his religion. He is also a mechanical engineer by qualification. He is married and has a son.

Dhasu Sir is famous for his unique style of teaching and his famous dialogue “Jai Mahakaal”. He uses humor, anecdotes, memes, and catchy phrases to make maths easy and interesting for his students. He also motivates them to work hard and achieve their goals.
Why is Dhasu Sir popular?
Dhasu Sir is popular because he provides high-quality maths education for free on YouTube. He covers all the topics and concepts that are relevant for various competitive exams. He also teaches shortcuts and tricks to solve problems faster and more accurately. He explains everything in simple and clear language, using examples and diagrams. He also interacts with his students through live chats, comments, and social media.

Dhasu Sir is also popular because he has a charismatic personality and a sense of humor. He makes his videos entertaining and engaging by using memes, jokes, stories, and references to popular culture. He also uses catchy phrases like “Jai Mahakaal”, “Dhasu Sarka Vada”, “Maths ka Baap”, etc., to create a rapport with his students. He also inspires them to have a positive attitude and a strong faith in themselves.
Parents & Siblings
Dhasu Sir was born in 1985 in Faridabad, Delhi, into a farmer family. He completed his education in Mechanical Engineering and has worked as a faculty member at reputable institutes in India, including adda247, Wifistudy, and Unacademy. Dhasu Sir gained significant popularity on social media, particularly YouTube, where he teaches mathematics to students preparing for various competitive exams.
While there is no specific mention of his parents and siblings, it’s important to note that Dhasu Sir’s rise to fame is primarily attributed to his expertise in mathematics education and his engaging teaching style. His online presence and contributions to the field of education have made him a well-known figure among students and YouTube viewers.
BIO, WIKI
Real Name | Dalveer Nagar |
Profession | Maths Teacher on YouTube |
Height | Approx. 5′ 8″ (in feet inches) |
Weight | Approx. 81 kg (in kilograms) |
Eye Color | Black |
Hair Color | Black |
Date of Birth | 12 June 1990 |
Age (as of 2023) | Approx. 33 years |
Nationality | Indian |
Hometown | Faridabad, India |
Languages Known | English, Hindi |
dhasu_sir_math/ | |
Youtube | @DhasuSirMaths |
Homepage | Dreshare.com |
Dhasu Sir Classes
Dhasu Sir offers math classes through various platforms to help students prepare for competitive exams. Here are some details about Dhasu Sir’s classes:
- YouTube: Dhasu Sir has a YouTube channel called “Dhasu Sir Maths”. On this channel, he provides free video lessons covering various topics in mathematics. His teaching style and unique approach to problem-solving have garnered him a significant following.
- Mobile App: Dhasu Sir Academy has developed a mobile app available on Google Play. The app offers free videos, mock tests, test series, chapter-wise MCQ tests, daily quiz tests, and current affairs updates. It covers a wide range of competitive exams, including SSC, banking, railway, defense, and state government exams.

- Social Media: Dhasu Sir can be found on platforms like Facebook and Telegram. However, specific information regarding his classes or group details could not be retrieved at this time.
Dhasu Sir’s classes aim to provide comprehensive math education and guidance to students aspiring to excel in competitive exams. His teaching methods and resources have gained popularity among students seeking effective math preparation.
What are some of the achievements of Dhasu Sir?
Dhasu Sir has achieved many milestones in his career as a maths teacher on YouTube. Some of them are:
- He has over 484k subscribers on his main YouTube channel and over 18k subscribers on his second channel.
- He has over 25 million views on his videos.
- He has helped thousands of students to crack various competitive exams like SSC, IBPS, UPSC, GATE, etc.

- He has received many awards and recognitions for his work, such as the Best Maths Teacher Award by Unacademy in 2019.
- He has written a book called Maths ka Baap, which contains all the tricks and concepts that he teaches on his YouTube channel.
What are some of the challenges faced by Dhasu Sir?
Dhasu Sir has faced many challenges in his journey as a maths teacher on YouTube. Some of them are:
- He had to struggle to get a good education and a job as a mechanical engineer.
- He had to face criticism and opposition from his family and society for choosing to teach maths on YouTube instead of pursuing a conventional career.
- He had to deal with competition and plagiarism from other YouTube channels that copied his content and style.

- He had to cope with the pressure and expectations of his students and fans who demand more videos and content from him.
How can you learn from Dhasu Sir?
- Subscribe to his YouTube channels: Dhasu Sir Maths and Dhasu Sir Academy.
- Download his app: Dhasu Sir Academy from Google Play Store.
- Buy his book: Maths ka Baap from Amazon or Flipkart.
- Watch his videos regularly and practice the questions and exercises that he gives.
- Interact with him through live chats, comments, and social media. Ask him your doubts and queries and give him your feedback and suggestions.

- Follow his tips and advice on how to prepare for competitive exams and how to improve your maths skills.
- Share his videos and content with your friends and family who are also interested in learning maths.
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