Mathematics
Class 5 to 12
Arithmetic to calculus. Every chapter ends with a 20-sum sheet, and the child does not move on until the sheet is clean. Board students get a formula booklet we print ourselves.
Shyambazar · Since 2009
Small batches. Weekly tests. No child left at the back.
Maths, Science and English coaching for Class 5 to 12. Fifteen students to a batch, a test every Saturday, and a report to parents every month. That is the whole method, and it has worked for sixteen years.
- WBBSE
- WBCHSE
- CBSE
- ICSE / ISC
- Two free classes before you pay anything
- Printed notes and past-year papers included in the fee
- Separate batches for Bengali-medium and English-medium students
1,900+ students taught since 2009
- Admissions open: new academic batches start the first week of April
- Class 10 and 12 board batches: extra revision batch from 1 December
- Mid-year joining: allowed if a seat is free in that batch
Who we teach
Class 5 to Class 12, three stages
Each stage has its own teachers and its own pace. A Class 6 child and a Class 10 child are never in the same room.
-
5-8
Foundation
Basics done properly: tables, fractions, grammar, writing in full sentences. Mistakes caught early are cheap to fix.
- Maths, Science and English
- Homework checked every class
- Bengali-medium and English-medium batches
- 3 days a week, 1.5 hours
-
9-10
Madhyamik and board years
WBBSE, CBSE and ICSE syllabus taught chapter by chapter from the board textbook, with board-pattern tests from September.
- Maths, Physical Science, Life Science, English
- Saturday test on the week's chapters
- Past 10 years' question papers solved
- Test series from December
-
11-12
Higher Secondary, Science
Physics, Chemistry and Mathematics for WBCHSE, CBSE and ISC, with the board exam as the target. Entrance-exam add-on batch for those who want it.
- Physics, Chemistry, Maths
- Batches of 12
- Practical file guidance
- Optional JEE Main / WBJEE problem class
Subjects
Three subjects, taught by subject teachers
No one here teaches everything. Each subject has a teacher whose degree is in that subject.
Science
Physical Science, Life Science, PCM
Diagrams drawn on the board and in the copy, not photocopied. Numericals practised till they are routine. For Class 11-12, Physics and Chemistry run as separate batches.
English
Class 5 to 12
Grammar, unseen passages, letter and report writing, and the textbook. Bengali-medium students get extra speaking and writing practice because that is where marks are lost.
Our method
How results actually happen
There is no secret. Results come from a child being seen every week, not once before the exam.
- 01
Fifteen students to a batch
Small enough that the teacher knows who is stuck by the second day, not the second month.
- 02
Test every Saturday
Thirty minutes on the week's chapters. Copies returned Monday with corrections, not just a number.
- 03
Doubt hour, every day
From 8 to 9 pm a teacher sits in Room 2. Any student from any batch can walk in with a copy.
- 04
Monthly report to parents
Attendance, test marks and two lines from the teacher, sent on WhatsApp on the 1st. Parents are asked to come in twice a year.
- 05
Board-pattern test series
From December, Class 10 and 12 students sit six full-length papers under exam time, in the exam hall seating.
Saturday, 5 pm
The test is the lesson
Every Saturday the week's chapters go on a thirty-minute paper. The copies come back on Monday with the working corrected in red, not just a mark at the top. A child who sees the same mistake twice stops making it.
Batches and fees
What it costs, in one table
Fees are per month, per subject group. Nothing is charged for notes, test papers or the doubt hour.
| Class | Subjects | Days and time | Batch size | Fee per month |
|---|---|---|---|---|
| Class 5-6 | Maths + Science + English | Mon, Wed, Fri · 4.00-5.30 pm | 15 | ₹900all three subjects |
| Class 7-8 | Maths + Science + English | Tue, Thu, Sat · 4.00-5.30 pm | 15 | ₹1,100all three subjects |
| Class 9 | Maths, Physical Science, Life Science, English | Mon to Sat · 5.30-7.00 pm | 15 | ₹1,500₹500 per single subject |
| Class 10 (Madhyamik / CBSE / ICSE) | Maths, Physical Science, Life Science, English | Mon to Sat · 7.00-8.30 pm | 15 | ₹1,800₹600 per single subject |
| Class 11 | Physics, Chemistry, Maths | Mon to Sat · 6.00-8.00 pm | 12 | ₹2,400₹900 per single subject |
| Class 12 | Physics, Chemistry, Maths | Mon to Sat · 6.00-8.00 pm | 12 | ₹2,700₹1,000 per single subject |
| Board test series (Class 10, 12) | Six full papers, December to February | Sundays · 10 am-1 pm | - | ₹800one time, free for our regular students |
- Admission fee ₹500, once. Fees paid by the 7th of the month, cash or UPI, receipt given.
- Two siblings together: ₹200 off the second child's monthly fee.
- Two trial classes are free. If you leave in the first month, we return that month's fee.
Teachers
Who takes the classes
Five teachers, all full time here. No rotating guest faculty.
Arindam Ghosh
M.Sc. Mathematics, Calcutta University · Founder
Taught at a Shyambazar school for eight years before starting Dishari in 2009. Takes Maths for Class 9 to 12 himself.
Sanchita Basu
M.Sc. Physics, B.Ed. · 11 years at Dishari
Physical Science for Class 9-10 and Physics for 11-12. Known for making students draw every diagram twice.
Rituparna Mitra
M.A. English, Jadavpur University
English for all classes. Runs the Bengali-medium speaking batch on Sunday mornings for no extra fee.
Tanmoy Dutta
M.Sc. Chemistry
Chemistry for Class 11-12 and Life Science for Class 9-10. Keeps the practical files in order before the school viva.
Priyanka Saha
B.Sc. Mathematics, B.Ed.
Foundation batches, Class 5 to 8. Patient with the child who is scared of sums. Most parents meet her first.
Doubt hour, 8 to 9 pm
Every day, Room 2
One of the five sits here each evening. Students from any batch can come without an appointment.
Results
Numbers we keep, year after year
We publish our students' board marks on the notice board every June, with their permission. These are from the 2025 exams.
- 63students sat Madhyamik or Class 10 boards in 2025
- 41of them scored 80 or more in Mathematics
- 28Class 12 students, all passed, 19 with 75+ in PCM
- 16years of continuous batches since April 2009
My son was getting 40 in Maths in Class 8. Arindam Sir told us plainly it would take a year. He got 87 in Madhyamik. The Saturday tests did it.Kakoli, mother of a 2025 Madhyamik student, Hatibagan
Inside Dishari
Two rooms, one doubt desk, a lot of chalk
Parents ask
Before you call
My child is in a Bengali-medium school. Is that a problem?
No. Around half our students are from Bengali-medium schools. Foundation and Class 9-10 batches are split by medium so the teacher can explain in Bengali where needed. Notes are given in both.
Can we join only for one subject?
Yes, from Class 9 onward. Single-subject fees are in the table above. Class 5 to 8 is taught as one combined batch because the three subjects share the timing.
What happens if my child misses a Saturday test?
The same paper is given on Monday in the doubt hour. Marks still go into the monthly report, so parents see the full picture.
Do you teach the school's own textbook or your own notes?
The board textbook first, always. Our printed notes are a summary and extra sums, not a replacement. For ICSE and CBSE we follow the prescribed books of those boards.
Is there a batch for students who want JEE or WBJEE?
There is an optional problem-solving class on Sunday afternoons for Class 11-12 at ₹600 a month. It is a supplement, not a full entrance course. We say that plainly so nobody is misled.
Visit us
First floor, above the stationery shop
Address
Dishari Coaching Centre
61B Bidhan Sarani, Shyambazar
Kolkata 700006
Five minutes' walk from Shyambazar Metro, Gate 1.
Office hours
Mon to Sat4.00 pm - 9.00 pmSunday10.00 am - 1.00 pm (tests and speaking batch)EnquiriesAny day on WhatsApp
Call or message
+91 98042 43159
Say the child's class and school. We will tell you which batch has a seat.
Admission
Two free classes. Then decide.
Send the child's class, board and school on WhatsApp. We reply the same evening with the batch and the trial dates.