• Customized class hours

  • Small batches – Personalised

  • Regular doubt clearing 
  • Free Diagnostic tests

Results & Successes ...

Sample Videos

Our Mentors


IIT alum | QA, LRDI | GMAT, GRE, SAT, CAT | 15+ yrs exp. | CAT 99.99 | GMAT Q51


XLRI alum | LR DI and QA | CAT, GMAT | GD-PI-WAT Expert | 20 yrs exp.


MICA alum | VA & English Expert (GMAT, GRE, SAT, ACT & CAT) | 15+ yrs exp.


Proven pedagogy

lineage of our experts

Our mentors, Sujoy, Dhruba and Sudeshna are alumni of top schools in India. They have top scores in the tests and have mentored thousands of students for more than 15-20 years. Sujoy has Q51 (obtained in 30 minutes) and also 99.5+ scores in CAT (with 99.99 in QA) for 10 consecutive years. 

All our mentors have interacted with many students, nurtured them and have helped them achieve their targets


Our courses have helped our students score 99.5+ in the CAT, XAT, SNAP etc., 1500+ in the SAT with 800 in Math, 34+ in the ACT, 730+ in the GMAT (with Q50) and 325+ in the GRE (with full 170 in QA). This has helped them get admitted to top institutes like IIMs, ISB, XLRI, IIFT, Cornell, NUS, UCB, ESMT, etc.

Courses at a glance

GMAT prep

40+ hours program - QA, VA, IR, AWA | In-batch (3 months) or one-on-One (custom) | Mocks, recordings, Doubt clearing

GRE prep

40+ hours program - QA, VA & AWA | In-batch (3 months) or One-on-One (custom) | Mocks, recordings, Doubt clearing

CAT prep

150+ hours program - QA, VA, LR & DI | In-batch (8-10 months) or One-on-One (custom) | Mocks, recordings, Doubt clearing

SAT-ACT prep

40+ hours program - Math, English, Science | In-batch (3 months) or One-on-One (custom) | Mocks, Doubt clearing

Diagnostic test


24 Questions - 45 minutes


24 Questions - 45 minutes


20 Questions - 25 minutes


Shreyan Gupta

GMAT one-on-one | GMAT 730 (Q50) Owing to Mr. Sujoy Kumar Datta’s meticulous teaching technique and focus on the basics, I was able to score a 730 in the GMAT Examination with sectional break-up of Q50 and V39. He has definitely filled in my gaps of concepts and has changed my strategy of attempting questions. I am indebted to… Read more “Shreyan Gupta”

Gopal Mundhra

CAT | SPJIMR He’s probably the best quant teacher in Kolkata. If you really want to rise above the mediocrity, he is the one to consult. The concepts are not done in an ordinary way because that is not the point of competitive exams. He carries rich experience and even richer… Read more “Gopal Mundhra”

Hrishav Roy

CAT course | Symbiosis I prepared here for the last 6 months to CAT and had a wonderful experience. Very caring and experienced teachers here. Loved the way they taught and would recommend all to join for the preparation. Teachers always available for solving the doubts. All the… Read more “Hrishav Roy”


CAT course | NMIMS It all started in the month of when I went over to discuss the whole preparation scene and I was instantaneously overwhelmed by Sujoy sir’s approach. Since then I’ve been taking regular classes and mocks. I’ve found the teaching approach and mocks really helpful. All of the teachers have been really supportive throughout the whole… Read more “Tirthankar”

Jai Choraria

SAT Course | SAT 1450 A great mentor, a great friend, he made SAT classes really worth going. A great inspiration for all of… Read more “Jai Choraria”

Shankha Mukherjee

CAT course | IIM Ranchi Experienced faculty with varieties of math tricks. He changed the way I looked at mathematics and mathematical aptitude… Read more “Shankha Mukherjee”

Lakshita Sharma

SAT Math course | Math 760 I took classes for SAT math for over 6 months and every class in that period was super helpful. I was able to improve my score and learn new techniques that worked best with my personal learning style. Even though I was taking classes internationally, the time was suited to what works best for me, and I was able to ask questions at any point and receive a quick reply. I would highly recommend for SAT… Read more “Lakshita Sharma”

Anshul Kakkar

GRE course I took my GRE Classes from here. The classes were very helpful in understanding the core concepts. The overall experience was awesome. It wasn’t just a class but an interactive session. He explains the concepts very well in a way that is understood without any… Read more “Anshul Kakkar”

Subhro Jyoti Hazra

GMAT 720 Cornell USC Marshall ESADE Mr. Datta was my mentor during my GMAT prep and he is truly a great mentor. I would recommend that anyone thinking about GMAT should at least attend one of his Quant classes. His approach is simply brilliant. I wish him all the… Read more “Subhro Jyoti Hazra”

Neel Deorukhkar

GMAT Q50 One of the most talented individuals I’ve come across, Sujoy is a great teacher and has the solution to almost any Quant question that I put forward. I particularly liked his teaching style – He didn’t give answers out easily and made you think till you were able to get the solution on your own. He constantly motivated and encouraged me during my GMAT prep. I’d recommend Sujoy to any taking the GMAT. It was a pleasure learning from… Read more “Neel Deorukhkar”

Pallav Chakraborty

CAT course | IIM Nagpur Sujoy Sir’s guidance and all the help from Team CUBIX helped me convert IIM Nagpur on my first try at CAT in 2020. His able guidance and continuous mentoring has helped me a lot and I was able to convert IIM Nagpur along with a few other top B-schools. I can vouch that he is a great mentor and definitely recommend others to seek his guidance for the B-School… Read more “Pallav Chakraborty”

Subharghya Mitra

GMAT 730 The VA classes by Sanjay Vasa sir helped me to improve my VA score. Also, the materials and support provided were… Read more “Subharghya Mitra”

Mari Mkhitaryan

GMAT QA one-on-one I have completed one-month course of GMAT with instructor Sujoy. This course enabled me to increase my score from Q43 to Q47 (even reaching to Q49 in my practice tests). The instructor also shared some tips and tricks to solve hard problems in an easier and less time consuming way. His customized study plan enabled me to concentrate on my weaknesses and improve my result. He also provided useful material to strengthen the acquired… Read more “Mari Mkhitaryan”

Fahad Taslim

CAT course | CAT 99.84 | IIM Calcutta He’s probably the best teacher in Kolkata. If you really want to rise above the mediocrity, he is the one to consult. The concepts are not done in an ordinary way because that is not the point of competitive exams. He carries rich experience and even richer… Read more “Fahad Taslim”


SAT Math 790 The teachers are very helpful, and thrives for students to reach their highest potential. Mr. Datta was immensely helpful in preparing my daughter for SAT Math section. She got the highest SAT Math score of… Read more “Madhvi”


SAT | Math 760 Sujoy sir worked with me for my SAT math section. I was able to learn many new concepts and was able to apply the… Read more “Pratyush”

Krithika Bhojanala

GMAT | UNC Kenan-Flagler After practicing a lot and giving a lot of mocks I was only able to score Q47 in my GMAT for my first attempt. But, once I enrolled for Sujoy Sir’s classes, I could see a definite improvement. Not only did he clear out my concepts, help me solve harder questions, he taught me how to approach each question in order to save time during the exam. After his classes, I was able to score 710, with Q50. Thank you… Read more “Krithika Bhojanala”

Akshay Kala

GMAT (QA) one-on-one | Q50 Sujoy explains Math in a very simple way and makes solving math a lot of fun. His methods are logical, really efficient and useful. I completed the entire QA with Sujoy and he was instrumental in clearing all my… Read more “Akshay Kala”

Ravin Kapoor

Son attended SAT course Thank you for making my son ready for SAT exam. I would like to highly recommend Sujoy and his team for our fantastic coaching experience. We live in USA CA and looking for good coach who can teach mathematics to our son Aradhya. We were fortunate to connect with Sujoy and really happy with the progress. He and his team is dedicated in making learning part of students with focused practical approach. Very discipline and punctual which enhanced learning experience – highly recommended and keep it… Read more “Ravin Kapoor”


PSAT course | PSAT 1340 (1520) I am from USA and have been a part of the online PSAT program with Sujoy Kr Datta and Sudeshna ma’am. They helped me a lot by explaining the tough concepts and cleared my… Read more “Tanmaya”


GMAT course | Q50 A lot of focus was on the conceptual understanding followed by practice questions which helped me achieve the… Read more “Chirag”

Judhajeet Biswas

CAT course | IMT Ghaziabad Sujoy Datta was my mentor for my MBA entrance test preparation – CAT 2021, SNAP 2021 and XAT 2022 from June 2021 to November 2021. I’m happy to say that Sujoy’s proficiency in the subject and his amazing teaching skills went a long way in helping me with the preparations. His unique approach to teaching Quants and DI theories and breaking down the complex concepts to the fundamentals helped me grasp the study material fast. His self curated and self created question bank was an indisputable resource. What truly sets him apart is the rare… Read more “Judhajeet Biswas”


SAT one-on-one Sujoy worked with me for weeks to prepare for my SAT math section. I was able to learn more concepts and apply that learning. He is a good teacher to teach you new (and multiple) ways to solve problems. Also, he provides a lot of extra study materials and practice problems. 5 star if you want someone who responds quickly and teaches new… Read more “Lola”

Soham Majumder

CAT course | MDI, NITIE Mumbai He is one of the best in the teaching industry when it comes to QA for MBA entrance examinations. He’s always there to help, whenever you need it. His methods and techniques are absolutely precise and apt for being able to bell the QA section in any MBA entrance… Read more “Soham Majumder”

Tanjeet Singh Wadhwa

SPJAT | SPJIMR Excellent coach, highly flexible, in-depth knowledge of the subject, but firm and push you beyond boundaries so that you can excel in exams. I owe lot to him for preparing and pushing me so hard to crack entrance exams. Shall rate him10/10. Thank… Read more “Tanjeet Singh Wadhwa”

Indushree Banerjee

TU Delft, Netherlands I had prepared myself and despite knowing the syllabus, I was unable to increase my speed. In only 1 month, he helped me achieve 162/170 in Quantitative. Had I been under his supervision for more than 3 months I am sure to have achieved near perfect scores. He is extremely friendly and helpful – he has the perfect tricks and techniques that helped me boost up my speed and maintain… Read more “Indushree Banerjee”

Drew Meyer

GMAT QA one-on-one When I started working with Sujoy, I was at 42. The day of our first meeting that I knew my search for the perfect quant tutor was over; I mean, the guy is a wiz. From the beginning of our sessions to my actual exam, Sujoy helped me improve from a Q42 to a Q49. Working with Sujoy was a huge confidence booster; he not only helped me with the tricks, tips, and tactics necessary to ace the Quant but also instilled in me the belief that I could actually improve. Having the right mindset is key… Read more “Drew Meyer”

Surya Ramaraju

ACT classes | Math 33, Science 33 Amazing teacher very friendly and very motivating as well. He is always willing to help us and never neglect our… Read more “Surya Ramaraju”

Anmol Agarwal

CAT course | IIM Shillong, IMI Sir has an excellent knowledge of the CAT course and is very thorough with the preparation. He guided me throughout the whole process including the college selections. Thank you… Read more “Anmol Agarwal”

Ahana Batabyal

CAT course | SIBM Sujoy sir is a very good teacher. He explains really well and is always available for any doubts we have. All the teachers are very supportive and dedicate a lot of time to all the students and make sure we do really… Read more “Ahana Batabyal”

Shreyash Manikonda

SAT course | Math 790, English 710 The classes were to the point and very easy to follow. Also, lots of practice helped in fixing the proper exam strategy, thus improving the score. Sujoy sir and Sudeshna ma’am were always available to clear all… Read more “Shreyash Manikonda”

Anchit Jalan

CAT course | IIM Kozhikode Sujoy Sir’s unique way of teaching helped me out with my CAT preparation and I scored a 98.08 percentile which would not have been possible without him. He has the capability to bring out the best in every… Read more “Anchit Jalan”

Victor Bose

CAT course | XLRI, NMIMS One of the best teachers anyone can have. Always made sure that we understood a concept behind a sum completely. Sir was forever ready to clear doubts irrespective of what time it was. Best of all, the questions sir can conjure on the spot is beyond… Read more “Victor Bose”

Debmalya Dutta

CAT course | IIM Ranchi Easily, amongst one of the very best in his trade. He has mastered the art of mathematics beyond excellence, and will always be willing to share his wealth of experience with you. No matter which level you belong to, trust him to have a strategy for you to excel. He will go out of his ways to help you out. I often used to seek help on concepts at odd hours of the day, and he almost always came up with a response within minutes. The result was that my percentiles got a… Read more “Debmalya Dutta”

Poulami Chakraborty

GRE | Ohio State University (full scholarship) I found the technique of teaching very good, specially the ways that were taught to do sums quickly was really helpful. I was helped a lot in English with my vocab and RC, tests were often taken which helped a lot. Further, I even found the teaching environment pretty comfortable so that I could voice my doubts repeatedly even on the same topic and I was always helped. The timings were also very flexible. Overall, the classes really helped me a lot to perform well in… Read more “Poulami Chakraborty”

Sidharth Sethi

GMAT course | Q50 Best teacher for any competitive exam. Extraordinarily good teaching skills, always available for any doubts, spends quality time with students even after class hours and very helpful in clearing important… Read more “Sidharth Sethi”


CAT course | NITIE, IIM A, IIM K Joined here for the preparation for CAT. Awesome teachers and their techniques. Loved the way they taught and always present when had a doubt. 5star for their efforts made. Thank… Read more “Shrayosi”

Neal Gupta

ACT course | Math 33, Science 35 Sujoy Datta is one of the most experienced teachers I have met. He knows the tricks to master the ACT Math. Preparing with Mr. Sujoy helped me successfully excel my ACT. Also, the large number of ACT mock tests also helped… Read more “Neal Gupta”

Chahat Walia

CAT one-on-one | SPJIMR, IMT, NMIMS Mumbai A great learning place if you are looking for CAT preparations – I was guided by Sujoy sir, he was immensely helpful in my preparation of quantitative aptitude, not only his teaching methods are unique but are also easily understandable. Alongside, sir is approachable at all times for clearing doubts and mentoring. I would highly recommend this institute to anyone preparing for MBA… Read more “Chahat Walia”

Pulkit Khanna

SAT course | Math 750, English 700 The classes taken by Sujoy sir and Sudeshna ma’am were very detailed and the concepts were explained very easily. There were lots of practice questions and mock tests… Read more “Pulkit Khanna”

Anhad Sadana

Auburn University Sujoy is one of the most dedicated and patient tutors, puts in lots of effort and keeps motivating – this approach helped he a lot for my… Read more “Anhad Sadana”

Pragya Bhayana

ACT 34 Tutoring classes for ACT Math were very helpful and the techniques taught were useful. Lots of short-cut methods were discussed. I improved my score to 34. I would definitely recommend the… Read more “Pragya Bhayana”

Rakhi Raizada

GMAT course | ISB Sujoy Sir has trained me for MBA entrance examination. He is one of the best teachers I have come across. The pedagogy which he follows is superb, making sure the student understands the underlying logic of the subject instead of just mugging up the things. I received his full support at every stage of my preparation. It was a wonderful experience. The pedagogy followed is superb. My hearty thanks to the entire team for helping me in achieving my goal that is converted ISB. A big yes to Sujoy… Read more “Rakhi Raizada”

Abhishek Jakhmola

CAT | IIM Indore My preparation for CAT began in the month of September which was pretty late, at least I felt so. However, with the right guidance from Sujoy Sir, I was able to handle my weak areas well. His consistent motivation goes a long way in the CAT journey. It was the very dedicated mentorship of sir that assisted me in this… Read more “Abhishek Jakhmola”

Aleena Chanda

GRE Course | Univ. of Nebraska The math classes were quite helpful and the techniques taught by the teachers helped to solve the sums quickly. The English classes were also quite effective. Sir helped us understand the techniques for solving reading comprehension which became very useful . Also we learned a lot of new words which is a very important part of GRE. The class timings were quite… Read more “Aleena Chanda”

Anomitra Banerjee

GMAT Q51 Sujoy Sir was instrumental with the fundamentals of Quant in GMAT leading to me getting a full score. When I started with Sujoy sir, I was at 46. Sujoy sir put in a lot of effort and made me practice the tough sums as he knew being an engineer I would easily do the medium ones. I would wholeheartedly recommend him to any GMAT… Read more “Anomitra Banerjee”

Shalaka Wikhe

GRE course Sujoy sir is an extremely great teacher. He is highly motivating and had answers to any question asked. His way of teaching concepts is very innovative and easily understandable. I highly recommend Sujoy sir for competitive… Read more “Shalaka Wikhe”

Anchita Mitra

SAT Course | Math 790 The classes by Sujoy sir were very informative and helpful. The concepts were discussed in depth and there were lots of mock tests which helped in fine-tuning the… Read more “Anchita Mitra”

Aditya Pugalia

SAT Classes | SAT 1490 Sujoy sir is an amazing teacher and makes complex topics seem very easy. Math is fun when he… Read more “Aditya Pugalia”

Rohit Tarafder

ACT Classes | Loughborough University It was a very pleasant experience. I could understand all the concepts that were taught to me in… Read more “Rohit Tarafder”

Jahin Zaman

SAT one-on-one | 740 E, 790 M (1530) I took SAT-Math with Mr. Sujoy and SAT-English class with Mrs. Sudeshna. Both of them are hardworking, punctual and sincere teachers. I liked the way they teach and learned a lot from them. Thank you so much from the bottom of my heart for your… Read more “Jahin Zaman”

Samrat Bose

GMAT 720 ESMT Berlin Cambridge ISB The best persons to contact for GMAT success – Sirs were responsible for guiding me through study materials and mock tests to increase my score from initial Mock-test results of 600 to a GMAT score of 720 (Q-50 V-38). He is great at conveying complex concepts in manageable chunks of… Read more “Samrat Bose”

Vedant Seksaria

SAT | University of Warwick Mr. Kumar is one of the most experienced teachers i have met. He knows the tricks to master the SAT. Studying under Mr. Kumar helped me successfully excel my SAT. More than the SAT. He creates a student friendly environment providing a helping hand to students when and where they… Read more “Vedant Seksaria”

Sanya Ahuja

SAT course | 700 E, 760 M (1460) I am from USA and have been a part of the online SAT program with Sujoy Kr Datta. From my experience, Sujoy sir and Sudeshna ma’am are the best mentors for the SAT. I improved a lot from my previous attempt – thanks to… Read more “Sanya Ahuja”


GRE Quant course Really competent and empathetic teacher that really helped me a lot with the quant section for the GRE, can highly… Read more “Clemens”

Alisa Basak

CAT course | SCMHRD, SIBM I have received a lot of learning from the mentors. They have been extremely helpful and always showed the right part to ace the target. The continuous guidance helped me to convert SCMHRD, IIM Ranchi, XIMB, Tapmi, KJ Somayia, SIIB, SIBM Bangalore, GreatLakes… Read more “Alisa Basak”

Sohni Chakraborty

Univ. of St. Andrews Being an English Literature student, the very thought of doing math for GRE was extremely scary. Sujoy is extremely patient and identifies your weaknesses very well. He taught me things in context, explaining the smallest of details so that I could understand the logic. He is well aware of the GRE pattern – I would strongly recommend him. I don’t think I would have been able to crack the GRE without his guidance and… Read more “Sohni Chakraborty”

Amrit Sharma

Simon Business School – GRE 320 (170 QA) The GRE course is tailored according to student needs. The top-notch faculty (they addressed my doubts even at 2 AM) & extensive problem bank made the GRE a… Read more “Amrit Sharma”

Chandana Veluri

Daughter attended SAT course If you are a parent like me in the US and are wondering if Indian standards of English teaching will meet your child’s needs, you are not alone. I was skeptical too. But my experience with this institute proved me otherwise. My son is in 9th grade at a public school system in the US. He took the English PSAT/SAT prep Course over summer and it gave him a good head start. Sudeshna ma’am’s teaching style was very likable to my child. She provided timely feedback. I appreciate the flexibility she showed in rescheduling some classes… Read more “Chandana Veluri”

Ishani Das

SPJAT | SPJIMR Sujoy Datta was my mentor for SPJAT entrance exam. He taught me for about 10 classes and helped me crack the entrance. He is extremely patient and an excellent coach. I owe it to… Read more “Ishani Das”

Jayati Saha

Univ. of Minnesota Sujoy is very knowledgeable and knows the GRE exam inside-out. He was persistent and motivated me to do well in the… Read more “Jayati Saha”


Classes are usually one-on-one and also sometimes in small batches of around 4-5 students. Our small batch sizes ensure that students feel free to ask questions and interact with the mentors

The classes are all online – primarily one-on-one and some classes are also conducted in small batches 

Online classes are conducted over zoom / google-meet. A meeting ID would be assigned to you using which you can join the session on your laptop or mobile

You will get all necessary practice materials (PDFs) to reinforce what you learn in the sessions. No other materials would be necessary

Yes! You can choose only Math (QA) or only English (VA) as per your requirements

Yes. You may book a free 30-minute zoom interaction before you enroll. You may also enrol for a paid full 60-min class before you decide to enroll for the full course

We provide continuous support – we have Unlimited Doubt-clearing on the go – after sessions & also over WhatsApp – stay connected with the mentors always

Payment terms are flexible – You can avail installment facilities as well. For more details, drop us a message! Payment can be made by account transfer 

You may either fill up the form below or message/call us: Sujoy: +91 9433063089 (call / text / WhatsApp);
or email at info@oneclickprep.com and mention your learning requirements

You may check out our YouTube channel and some of our sample videos here
Alternatively, you may also check out Videos page: for SAT; for GMAT & GRE; for CAT

Reach Us