for Top Ranks in Kolkata , Durgapur & Online

CB Classes is a premier coaching institute dedicated to shaping the future of young minds by preparing students for  NEET & IIT JEE  Coaching with a strong foundation program starting from Class VI. With expert faculty, a result-oriented approach, and a commitment to excellence, we nurture students through personalized mentorship, conceptual clarity, and rigorous practice sessions. Our structured curriculum, innovative teaching methods, and regular assessments ensure that students not only excel in competitive exams but also develop a deep understanding of core subjects. Join CB Classes to embark on a journey toward success in India’s most prestigious entrance exams!

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CB Classes At A Glance
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Founder’s Profile

Er. Chandrajit Banerjee

Founder and Chief Mentor of CB Classes ( a unit of SIDB Learning Solutions Pvt Ltd )

Mr. Chandrajit Banerjee holds a B.E degree in Mechanical Engineering  from IIEST ( B.E.College, Shibpur). He has 25 years of teaching experience in NEET and IIT JEE Coaching, in different parts of India , with a proven track record of producing rankers in different competitive examinations. He started his professional career in the year 1998, right after completing his engineering. After two years of factory job , he shifted to academics. From the year 2000 till date, he has guided thousands of students to shape the career.

In 2011, driven by his entrepreneurial dream and a vision to provide quality education accessible to all, Er. Banerjee founded CB Classes. In 2021 , it was registered with ROC as an entity called SIDB Learning Solutions Pvt Ltd owning the entire establishments CB Classes.   Under his leadership , the institute has mentored more than 12000 students who have done excellent results in IIT JEE [Now JEE(Advanced)], JEE (Main)[Earlier AIEEE], NEET(Earlier AIPMT), WBJEE, KVPY, Olympiads , IISER Entrance Test(IAT) and newly launched CUET.  

CB sir , as popularly known in student fraternity , believes in fostering a deep understanding of concepts through interactive learning . He introduced many innovative initiatives designed to strengthen students’ analytical skills.

His mission is to inspire and empower students to utilise their full potential in reaching their dream college with desired stream.

Our Star

Performers in Engineering

cbse board

Debabrata Mondal

IIT-21 (SC) WBJEE - 3

cbse board

Indranil Mandal

IIT-51 (SC) WBJEE - 2 (SC)

institute for iit jee in kolkata

Rohit Bose

IIT-54 (SC)

sample paper for cbse board exam

Avishek Das

IIT-115 WBJEE - 2

coaching center for board exam

Gyanesh Gupta

IIT-143 WBJEE - 1

Our Star

Performers in Medical

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Subhashis Saha

WBJEE-01 | AIMS-88 | CMC Vellor-9

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Sayan Banerjee

NEET(SR) -04

icse coaching center in kolkata

Ramyani Ghosh

NEET(SR)-05

sample paper for neet exam

Rima Mondal

WBJEE(SC)-06

sample paper for jee advanced

Arka Ray

NEET(AIR)-216

Our Star

Top Performers in Board

institutte for medical entrance in kolkata

Rudranil Shee

99.20%

cbse board classes

Shamaita Ghosh

99.20%

icse board coaching classes in kolkata

Swapnamoy Das

99%

sample paper for icse board exam

Ayush Saha

99%

institute for medical entrance exam

Sreejeeta Roy

99%

Testimonials

Hear what our students have to say

I won’t be over stating if I say all my achievements during +2 have been made possible directly or indirectly by CB Classes. The methodical teaching, emphasis on concepts & applying them, systematic exam, doubt – clearing sessions – all have been incredibly helpful both in writing exams and getting me interested in the game of science. Also a must-mention is the motivation and confidence given by CB sir to every single student individually. It is because of CB Sir and CB Classes, I am what I am today.

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Avishek Das KVPY 20, IIT Rank 115, WBJEE Rank 2, NEET Rank 49, HS Rank 9

Throughout my 11th and 12th, Chandrajit sir has been an incredible teacher, a great guide and a person I alaways could and did approach to sort out any acadimic Doubts I had. No doubt that he has truly been in Instrumental in all my sucess in those 2 years, including clearing KVPY and the three NSES(Olympiads)

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Shubhashis Saha (WBJEEM Rank 1, AIIMS Rank 88, JIMPER Rank 82, CMC VELLORE - Top 12(SELECTED), CMC LUDHIANA Rank 2)

I am a student of Chandrajit Sir (CB Classes) enrolled for physics coaching for JEE-ADVANCED for the session 2012-14. I gave my entrances in 2014 and secured an air of 143 in JEE-ADVANCED and topped the WBJEE-2014. I owe a lot of my success to my decision to join CB Classes and Chandrajit Sir in particular. I joined his classes in april 2012 due to the past success stories in Kolkata and overall reputation. The classroom environment was competitive and yet promoted a flexible learning environment. Besides class hours, I got a lot of support in the form of extra material and even personalized doubt clearing. The best part was weekly tests - they helped me improve in terms of exam performance. The Main focus was underlying concepts and so his help was beneficial in boards as well as other exams. I learnt a lot in the classes as well as by interacting with Sir. I am deeply indebted to CB classes and would recommend Anyone serious for JEE to join it.

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Gyanesh Gupta IIT 143 | WBJEE 1

I joined physics class in CB Classes in 2017-18 for JEE Main/Advanced. The environment here is very competitive and interactive. The faculty is also very supportive, giving priority on making every concept lucid, clearing doubts and practicing maximum types of questions in classes. The study materials like CRTs, CPPs, Revision sets, etc provided for all topics provide to be very handy while going through concepts. Weekly tests and phase tests conducted helped me estimate my process in topics. I am grateful to CB Sir and CB Classes as a whole for helping me throughout my JEE preparation. Had it not been their guidance, it would have been impossible to crack these exams.

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Sunidhi Dhandhania WBJEE 100 | JEE ADV. 557

I joined CB Classes in class IX for my Boards Examination and secured 95.2% in ICSE. After that, I continued with CB Classes for my JEE preparation through class XI and XII. CB Classes played a very important part in my preparation. Concepts in all subjects were thoroughly explained. Oaried problems in good numbers covering different topics and ideas were given and guided to solve in every class. Moreover, there were weekly assignments, containing numerous problems for practice. Weekly tests were conducted so that we could evaluate ourselves and find our shortcomings. All teachers were always ready and available to clear any doubts that I had. Individual attention was given to each student. CB Classes also helped me to prepare for class 12th Boards by organizing Boards classes too. Without CB Classes my results would not have been possible.

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Ayan Chakraborty WBJEE 14 | JEE ADV. 886

CB Classes helped me a lot by bringing an organized and extraordinary coaching to the doorstep. Regular weekly tests helped us keep track of our process and carefully assembled assignments and fact sheets combined the best of various books. CB Sir himself is the best Physics teacher that I have come across. Chemistry and Biology classes were wonderful too. My teachers were really approachable and an online doubt clearing group was present to help us irrespective of the day and time. Phase tests held in the pattern of major exams like NEET and JEE were a blessing. Board support material and board pattern tests helped to cope with school and board exams. It is only because of CB Classes that I managed to secure AIR 3876 in NEET, 1535 in AIIMS, 588 in JIPMER and 815 in KVPY. Thank you CB Classes!

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Agnij Bhattacharya NEET AIR 3876 | AIIMS 1535 | JIPMER 588 | KVPY 815

I joined CB Classes for Physics in Class XI (2015). I came to know about the Coaching Center from a senior student. I attended Chandrajit Sir's Classes throughout Class XI & XII. His teaching methodology has been very interesting and helped me understand the intricate concepts of physics. Doubt Clearing Sessions were no less effective. Library facility was of immense help. Daily assignments sheets (DAS) and weekly tests were equally useful. All combined, CB Classes boosted confidence to clear all competitive exams like NEET, AIIMS, JIPMER, WBJEE, JEE Main & Advanced and KVPY (SX). I am currently studying B.Sc (Research) in IISc., Bengaluru. I am truly thankful to CB Classes for helping me achieve my goal.

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Sayan Singha NEET SR 25 | KVPY(SX) AIR 75

There are a few places where mediocrity can be destined to shine if instructions are followed religiously. CB Classes is such a guiding star. This comes from a mediocre student who would have been lost in an abyss but for the presence of the guiding star, both academically and mentally in the hallowed portals of CB Classes.

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Arya Sen NEET SR 356
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