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February 19, 2025
Rank of Best Math Colleges and Universities in India, 2025

India has some great colleges and universities for mathematics and statistics. This document has a compilation of top 50 departments in India based on research, seminars, faculty strength and reputation.

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November 4, 2024
IIT Kanpur Mathematics Department Opens Olympiad Route for Admission

IIT Kanpur is starting admission through real Math Olympiad (IOQM, RMO, INMO). Other departments may join.

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October 29, 2024
Top 20 Mathematics Departments in Indian Universities in 2024

Top 20 mathematics programs in India at the college (undergraduate) level after high school in 2024.

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February 19, 2025
Rank of Best Math Colleges and Universities in India, 2025

India has some great colleges and universities for mathematics and statistics. This document has a compilation of top 50 departments in India based on research, seminars, faculty strength and reputation.

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October 29, 2024
Top 20 Mathematics Departments in Indian Universities in 2024

Top 20 mathematics programs in India at the college (undergraduate) level after high school in 2024.

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April 21, 2024
How to Build a Career in Mathematical Science - Steps and Resources

Career options in Mathematics, how to plan a successful academic, research or industry focussed career in school and college.

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February 5, 2024
The 'Cheenta' method of Olympiad Training

Cheenta has been working with thousands of school and college students since 2010. We have deviced a unique method of teaching non-routine mathematics, physics and computer science over the last 14 years. In this article we will discuss the main features of the Cheenta method. Two Pronged Approach A Cheenta program usually consists of two […]

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September 26, 2023
Unlocking Math Olympiad Success: Navigating the Maze of Fake vs. Real Olympiads

Explore the world of Math Olympiads and discover how to differentiate between Fake and Real Olympiads. We share valuable insights on the path to Olympiad success, emphasizing the importance of consistency and reputable organizers.

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November 30, 2022
How to teach mathematics : an experiment with triangular numbers and splitting of plane

We discuss how to appreciate the beauty of mathematics and how to communicate the same to children using experiments and pattern recognition.

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October 18, 2022
Sword does not need to remember how the whetstone looks

Imagine sharpening your sword with a whetstone. The job of the stone is to sharpen the sword. It does not matter what color the stone is. Cheenta programs are designed like whetstones. They are supposed to sharpen the creativity and problem solving skills through a slow but sure process. They involve thousands of thought provoking […]

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April 23, 2022
How to prepare for Olympiads and other contests in Middle School?

Tools for middle school children and their parents. How to help kids fall in love with mathematical science and prepare them for math and sciecnce olympiads, ISI, CMI Entrances and other contests in the long run?

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March 19, 2022
Junior Data Science Olympiad: Resources

Junior Data Science Olympiad is suitable for students of grade 9 and above, interested in Data Science. Check out the resources for the Junior Data Science Olympiad in this post. Curriculum Algebra Trigonometry Coordinate Geometry Combinatorics Data Visualization Algebra AM, GM, and Cauchy Schwarz Inequality Rational Root Theorem, Remainder Theorem Roots of a polynomial Trigonometry […]

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March 19, 2022
Mahalanobis Olympiad: Resources

Mahalanobis Olympiad is suitable for College and University Students, interested in Statistics and Mathematics. Check out the resources for the Mahalanobis Olympiad in this post. Curriculum High School Mathematics Calculus and Linear Algebra Probability Statistics High School Mathematics Coordinate Geometry Trigonometry Complex Numbers Permutation and Combinatorics Calculus and Linear Algebra Pre Calculus One Variable Calculus […]

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November 1, 2024
Exploring “102 Combinatorial Problems”: A Resource for Olympiad Enthusiasts and Combinatorial Thinkers Alike

Titu Andreescu and Zuming Feng have given us a beautiful book about combinatorial problems which help students in olympiad preparation.

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February 28, 2022
A beautiful book from Eastern Europe for Math Olympiads, ISI CMI Entrance and joy of doing math

Explore this beautiful book on problems useful for Math Olympiad, ISI CMI Entrance. It is written by three Russian authors. Title: Selected Problems and Theorems in Elementary Mathematics – Shklyarsky, Chentsov, Yaglom

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July 7, 2026
NSEJS 2019 Question Paper

Question 1 Let $\alpha$ and $\beta$ be the roots of $x^{2}-5 x+3=0$ with $\alpha>\beta$. If $a_{n}=\alpha^{n}-\beta^{n}$ for $n \geq 1$ then the value of $\frac{3 a_{6}+a_{8}}{a_{7}}$ is (a) 2 (b) 3 (c) 4 (d) 5 Question 2 The number of triples $(x, y, z)$ such that any one of these numbers is added to the […]

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July 7, 2026
NSEJS 2018 Question Paper

Question 1 A tiny ball of mass $m$ is initially at rest at height $H$ above a cake of uniform thickness $h$. At some moment the particle falls freely, touches the cake surface and then penetrates in it at such a constant rate that its speed becomes zero on just reaching the ground (bottom of […]

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June 27, 2026
ISI M.Stat Entrance Success Story 2026

In 2026, the following Cheenta students have been successful for Indian Statistical Institute's M.Stat Entrance. They ranked within the first 50 in the entire country in these entrances. I.S.I. M.Stat Entrance

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June 27, 2026
ISI B.Stat-B.Math and CMI BSc. Math Entrance Success Story 2026

In 2026, the following Cheenta students have been successful for Indian Statistical Institute's B.Stat Entrance and Chennai Mathematical Institute's B.Sc. Math Entrance. They ranked within the first 200 in the entire country in these entrances. Most of these students attended the problem solving workshops regularly, which happen 5 days every week. CMI B.Sc. Math Entrance […]

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May 11, 2025
ISI BStat-BMath UGA & UGB 2025 Problem and Solution

UGA 1. (A) 2. (C) 3. (B) 4. (B) 5. (A) 6. (D) 7. (D) 8. (D) 9. (B) 10. (B) 11. (C) 12. (D) 13. (C) 14. (D) 15. (B) 16. (D) 17. (D) 18. (C) 19. (C) 20. (A) 21. (A) 22. (C) 23. (B) 24. (A) 25. (C) 26. (B) 27. (A) […]

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October 17, 2024
Exploring the Chinese Remainder Theorem for Polynomials: CMI B.Sc. Entrance 2016- Subjective Problem 5

Isn't it exciting to know that Chinese Remainder Theorem can also be applied in the context of polynomials?

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August 25, 2024
ISI BStat BMath Entrance 2018 - Objective Problems and Answers

Indian Statistical Institute BStat and BMath Entrance 2018 Objective Problems and Answers

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July 20, 2024
Exploring Locus Problems in Math Olympiad Geometry

Learn about the concept of Locus problem in Geometry of Math Olympiad

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June 22, 2024
ISI and CMI Entrance 2024

We are thrilled to announce that our students have ranked within the top 50 in the country in the Institute's B.Sc. Math Entrance exams. Key achievers include Ahan Chakraborty, Mohak Chugh, Krish Agrawal, Piyush Kumar Jha, and Agastya Agarwal. Special congratulations to Ahan Chakraborty (AIR 12 in I.S.I. B.Stat) and Mohak Chugh (AIR 43 in I.S.I. B.Math). Join our Success Meet-Ups to learn from these top performers and celebrate their achievements.

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May 12, 2024
ISI B.Stat/B.Math 2024 Subjective Problem and Solution

Find the problems and solutions of the ISI B.Stat/B.Math Subjective set 2024.

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September 16, 2026
IOQM 2026 - Problems

Question 1 The central square of a $9 \times 9$ chessboard is white. How many white squares are there on the board? (The squares of the chessboard are coloured alternately black and white.) Question 2 An integer $M$ is divisible by 4 but not by 256 . What is the number of distinct possible remainders […]

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August 30, 2026
NMTC 2026 Comes to Kolkata: Cheenta Hosts the Preliminary Round at Mitra Institution

On 30th August 2026, young mathematics enthusiasts across Kolkata gathered at Mitra Institution (Main) for the preliminary round of the National Mathematics Talent Contest (NMTC) — one of India's longest-running mathematical olympiads. Cheenta took charge of conducting the exam in the city, with invigilation handled by Deepan Dutta, Raghunath J V, Shilpa Bera, Taniya Das […]

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August 28, 2026
NMTC 2026 in Kolkata: Cheenta Runs a Month of Prep Workshops

Cheenta is hosting the National Mathematics Talent Contest (NMTC) 2026 Preliminary Round on 30th August 2026 at Mitra Institution (Main), Kolkata. In the weeks leading up to it, Cheenta ran an offline workshop at its Lake Place Road center, from 8th to 29th August to get students ready for the kind of thinking NMTC actually […]

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August 16, 2026
NMTC 2023 Stage I - Gauss (Grade 5 & 6) - Problems

Question 1 The value of \(\frac{999 \times 999 \times 999}{(999+999) \times 111 \times 111}\), when simplified, is (a) \(\frac{999}{2}\) (b) \(\frac{111}{3}\) (c) \(\frac{81}{2}\) (d) 1000 Question 2 When \(4 \frac{1}{2}\) is divided by \(3 \frac{1}{4}\), the result is x. When \(3 \frac{3}{4}\) is divided by \(2 \frac{1}{8}\), the result is y. Then the numerical value […]

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August 7, 2026
Cheenta Hosts the Australian Mathematics Competition 2026 in Kolkata, Mumbai

Cheenta recently hosted the Australian Mathematics Competition (AMC) 2026 on 4th, 5th, and 6th August, starting at 2:30 PM, at its Kolkata center, and simultaneously at Innovation Story in Mumbai. Students from both cities sat for one of the world's most respected school-level mathematics contests, marking another year of Cheenta's continued involvement in bringing international […]

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August 5, 2026
Sharygin Geometrical Olympiad 2026: Cheenta's Kolkata Center Hosts the Final Round

Cheenta recently hosted the final round of the Sharygin Geometrical Olympiad 2026 at its Kolkata center, spread across two days — 31st July and 1st August, from 12 PM to 4 PM each day. Students sat across the table from a panel of jurors and defended their geometric proofs the old-fashioned way: pen, paper, and […]

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July 21, 2026
Mathematics in Non Routine Spaces for Elementary School

What happens when elementary school mathematics leaves the textbook and enters the garden, the night sky, and embroidered cloth? We share three open-ended problems for grades 1 to 6, each built on two levers, discovery and creation, and each ending with an invitation to invent a definition.

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July 14, 2026
NSEJS 2017 Question Paper

Question 1 Two wave pulses I and II have the same wavelength. They are travelling in the directions as shown by the single headed arrows. The resultant sketch of the two wave pulses at some instant of time when $P$ coincides with $R$ is ____ . Question 2 The equivalent resistance of two resistances in […]

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July 5, 2026
NSEJS 2016 Question Paper

Question 1 Rod AB of radius 2 r is joined with rod BC of radius r . They are of same material and are of same length. The combination carries a current I. Choose the correct statement. (a) $V_{A B}=4 V_{B C}$ (b) Current per unit in AB and BC are equal (c) Resistance of […]

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July 1, 2026
NSEJS 2020 Question Paper

Question 1 Gravitational collapse is the contraction of an astronomical object under its own gravity. This draws the matter inwards towards the centre of gravity. A neutron star is an example of the collapsed core of a giant star. A certain neutron star of radius 10 km is of mass $1.5 M_{\odot}$. The acceleration due […]

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May 12, 2025
ইন্টিগ্রেশন-এর কম বেশি

সমাকলন অথবা ইন্টিগ্রেশনের মানেটুকু বুঝলে আই-এস-আই প্রবেশিকার এই অঙ্কটা করা যাবে। ISI Entrance 2025-এর অঙ্ক নিয়ে আলোচনা।

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February 22, 2024
পিয়ানোর চতুষ্কোণ, তাতে ‘মাত্রা’ হলো মাত্রাছাড়া!

(২১-শে ফেব্রুয়ারীর প্রতি) ‘মাত্রা’ অথবা ডাইমেনশন কাকে বলে? একটু তলিয়ে ভাবতে গেলে কিন্তু সব গোলমাল হয়ে যায়। এই এক টুকরো লেখায়, আমরা ডাইমেনশন নিয়ে একটু ভাবা প্র্যাকটিস করব। একটা বিন্দু-র dimension কি? একটা সরলরেখারই বা dimension কি? একটা কাগজের টুকরোর dimension কি হবে? চট করে ভাবলে মনে হয় যে কিন্তু কেন এরকম মনে হচ্ছে? তুমি […]

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October 20, 2019
Really understanding Direct Limit, Inverse Limit, and Hom

Direct Limit, Inverse Limit, and Hom are three ideas from category theory that are useful in many branches of mathematics. A deep understanding of them can be very helpful in the long run. In the following video, we draw schematic pictures and gain real intuition behind these abstract ideas. This is clearly one of the most important videos of our production.

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September 22, 2019
দুনিয়া যদি হয় হাইপারবোলিক!

হাইপারবোলিক জ্যামিতির জগৎটা একদমই অন্যরকম। এখানে ইউক্লিড খুঁড়িয়ে খুঁড়িয়ে হাঁটেন। এখানে সমান্তরাল রেখা মিশে যায়। এখানে সরলরেখা দেখায় আঁকা বাঁকা।

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February 21, 2019
বিস্মৃতপ্রায় তিন বাঙালি গণিতজ্ঞ এবং একটি পরিশিষ্ট

আন্তর্জাতিক মাতৃভাষা দিবস উপলক্ষে চিন্তা গণিত কেন্দ্রের একটি প্রয়াস হল বিস্মৃতপ্রায় তিন বাঙালি গণিতজ্ঞ ।এই লেখাতে তিনজন বাঙালি গণিতজ্ঞকে শ্রদ্ধাজ্ঞাপন করেছি

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February 20, 2019
কল্পনার গোল্লাছুটে যুক্তির দরবেশ!

যুক্তিকে বড়ো কাঠখোট্টা ভদ্রলোকের মত মনে হয়। কল্পনা তার বিপ্রতীপে দাঁড়িয়ে থাকা এক অস্থির মতি বালিকা। সে যেন রেবা নদীর তীরে ছুটোছুটি করে খেলছে। আর যুক্তি তাকে বকাবকি করছে। শাসনে রাখতে চাইছে।
অথচ ব্যাপারটা হয়ত একটু অন্যরকম। হয়ত কল্পনা এক বৃত্তে ছুটে চলেছে। যুক্তি সেখানে এক দরবেশের মত এসে হাজির। সে তাকে নতুন পথ দেখিয়ে নিয়ে যাবে আরও উন্মুক্ত অস্থিরতায়। আর আমরা যারা পড়ুয়া তারা মালবিকার মত অনিমিখে তাকিয়ে থাকব পথের দিকে। কে জানে অগ্নিমিত্র আসবেন কিনা!

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February 18, 2019
অসমীকরণ : সংখ্যাদের সম্পর্কের গল্প

প্রাথমিক শিক্ষার্থীদের অন্যরকম অঙ্কের স্বাদ দেওয়ার জন্য দশকথা সিরিজ করা হয়েছে। আজ দশকথার চতুর্থ কথা।আমরা অসমীকরণ ব্যাপারটি বলব ।

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January 18, 2019
বহুভুজ :বন্ধুদের বিন্দু ভেবে দেখি

বাংলা মাধ্যমের প্রাথমিক শিক্ষার্থীদের একটু অন্যভাবে বা অন্যরকম অঙ্কের স্বাদ দেওয়ার জন্য দশটি লেখার একটি সিরিজ তৈরি করা হয়েছে । যার নাম দশকথা । আজ দশকথার তৃতীয় কথা। এই লেখাতে আমরা বহুভুজের ব্যাপারটি বলব |

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January 8, 2019
জাদু বর্গ

বাংলা মাধ্যমের প্রাথমিক শিক্ষার্থীদের একটু অন্যভাবে বা অন্যরকম অঙ্কের স্বাদ দেওয়ার জন্য দশটি লেখার একটি সিরিজ তৈরি করা হয়েছে । যার নাম দশকথা । আজ দশকথার দ্বিতীয় কথা। এই লেখাতে আমরা ম্যাজিক স্কয়ার ব্যাপারটি বলব |

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December 29, 2018
আয়নাবাজি

বাংলা মাধ্যমের প্রাথমিক শিক্ষার্থীদের একটু অন্যভাবে বা অন্যরকম অঙ্কের স্বাদ দেওয়ার জন্য দশটি লেখার একটি সিরিজ তৈরি করা হয়েছে । যার নাম দশকথা । আজ দশকথার প্রথম কথা। এই লেখাতে আমরা দর্পণ প্রতিসাম্যতা ব্যাপারটি বলব । আপনাদের মন্তব্য-প্রতিমন্তব্য  চিন্তা গণিত কেন্দ্রের এই উদ্যোগকে এগিয়ে নিয়ে যেতে সাহায্য করবে ।

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September 27, 2026
Uddalaka (Advanced) Session Report (19.9.26)

The class began with a hands-on Physics experiment aimed at experimentally verifying the refraction of light. Using a laser pointer and a bottle filled with salted water, the children observed how light bends as it passes through a medium of different density, allowing them to witness this optical phenomenon in a practical and memorable way […]

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September 26, 2026
Uddalaka (Beginners) Session Report (19.9.26)

The class began with an engaging, hands-on activity involving the colouring of paper cubes and tetrahedrons, which gave the children a tactile introduction to three-dimensional shapes. As part of this exercise, they also practiced counting the edges, vertices, and faces of these solids, helping them build a strong foundational understanding of basic geometric properties in […]

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September 17, 2026
Uddalaka (Advanced) Session Report (12.9.26)

The class began with a hands-on Physics experiment exploring the behavior of light under different conditions. Using a laser pointer, glass frames, and coloured water in a beaker, the children observed how light reflects when it strikes a smooth and shiny surface at varying angles, and how its path bends, or refracts, as it travels […]

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September 17, 2026
Uddalaka (Beginners) Session Report (12.9.26)

The class began with an engaging, hands-on dotara-making session, offering the children a unique opportunity to learn about traditional craftsmanship firsthand. For this special session, Ali Laskar, a skilled artisan with considerable experience in making these traditional instruments, travelled from a remote village near Magrahat in South 24 Parganas to share his expertise with the […]

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September 16, 2026
IOQM 2026 - Problems

Question 1 The central square of a $9 \times 9$ chessboard is white. How many white squares are there on the board? (The squares of the chessboard are coloured alternately black and white.) Question 2 An integer $M$ is divisible by 4 but not by 256 . What is the number of distinct possible remainders […]

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September 13, 2026
Kankinara Faculty Training Report (6th September, 2026)

Week 20 of the Hundred Miles Project marked the programme's final assessment, drawing together twenty weeks of growth across Literacy, Numeracy, and Digital Literacy, alongside a hands-on session revisiting the dul stitch and French knot. In the Literacy module, participants read a passage contrasting where they started, reading only a few words and never having […]

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September 9, 2026
Uddalaka (Advanced) Inaugural Session Report (5.9.26)

The session opened with a Physics class focused on the concepts of reflection and refraction, demonstrated engagingly through the use of a laser pointer. This visual and interactive approach helped the children grasp these optical phenomena in a way that was both accessible and memorable. The class then moved on to mathematics, where the children […]

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September 8, 2026
Uddalaka (Beginners) Session Report (5.9.26)

The class began on a warm and celebratory note, with everyone taking a moment to admire the beautiful handmade cards the children had crafted for Teachers' Day. Their creativity and thoughtfulness set a cheerful tone for the rest of the session. Following this, the teaching moved into a hands-on exploration of paper-folding, where the children […]

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September 6, 2026
Uddalaka (Beginners) Session Report (29.8.26)

In the indoor Patterns Lab session, the children engaged with two puzzles designed to stimulate their analytical thinking — one centered around shapes and the other around numbers. Both puzzles turned out to be moderately challenging for the young participants and required more time than initially expected to work through. Despite the difficulty, the children […]

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September 3, 2026
Kankinara Faculty Training Report (30th August, 2026)

Week 19 of the Hundred Miles Project asked learners to draw together several strands of the programme in this stage's assessment paper, while the hands-on session focused on consolidating stitch work already assigned by the instructor rather than introducing anything new. In the Literacy module, participants read a passage describing how the programme was built […]

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