What is the difference between a formal and informal letter?

A formal letter uses official language, has a sender's address, receiver's address, subject line, formal salutation (Dear Sir/Madam), and formal closing (Yours faithfully). An informal letter uses friendly language, has only the sender's address, and uses Yours sincerely / Love as closing.

How do I write a good paragraph for Class 9 English?

Start with a topic sentence, add 3-4 supporting sentences with details and examples, and end with a concluding sentence. Use varied sentence structures and avoid repeating the same words.

Tamil Nadu Class 9 English Writing Format Bank — Samacheer Kalvi

1. Formal Letter Format

[Your Address]
[City, PIN]
[Date]

[Receiver's Designation]
[Organisation Name]
[Address]

Subject: [Clear one-line subject]

Dear Sir / Madam,

[Opening paragraph — state purpose clearly]

[Body — details, reasons, or requests]

[Closing paragraph — thank the reader, state expected action]

Yours faithfully,
[Your Name]
[Class / Roll Number if applicable]

Types of Formal Letters

Complaint Letter — State the problem clearly, give evidence/dates, request specific action. Application Letter — State the position or permission you seek, give reasons, provide relevant details. Enquiry Letter — State what information you need, why you need it, how the response should be sent.

Sample Subject Lines

"Subject: Complaint Regarding Irregular Bus Service"
"Subject: Application for Permission to Organise Science Exhibition"
"Subject: Request for Fee Concession"

2. Informal Letter Format

[Your Address]
[City, PIN]
[Date]

Dear [Friend's Name],

[Opening — ask how they are / mention a recent event]

[Body — main purpose of the letter, 2-3 paragraphs]

[Closing — invite reply, send regards to family]

Yours lovingly / Yours sincerely,
[Your Name]

Tips for Informal Letters

Use contractions: I'm, you're, it's — these make it sound natural.
Ask at least one question to show interest in the reader.
Keep a friendly, warm tone throughout.

3. Notice Writing Format

[Name of School / Organisation]
NOTICE
[Date]

[Title of Notice — bold/underlined]

[Body — date, time, venue, purpose, who should attend]

[Name and designation of the person issuing the notice]

Sample Notice

SUNRISE MATRICULATION SCHOOL NOTICE 15 May 2026 Inter-School Science Quiz Competition Students of Classes 9 and 10 who wish to participate in the State-level Science Quiz on 25 May 2026 are requested to submit their names to the Science teacher by 20 May 2026. The competition will be held at the school auditorium. Arun Kumar Science Teacher

4. Paragraph Writing

Structure

1. Topic Sentence — States the main idea (1 sentence). 2. Supporting Sentences — 3-4 sentences with details, facts, or examples. 3. Concluding Sentence — Summarises or restates the topic.

Sample Paragraph: The Importance of Reading

Reading is one of the most powerful habits a student can develop. It expands vocabulary, deepens comprehension, and builds imagination. Students who read regularly perform better in all subjects, not just English. Books expose readers to new ideas and perspectives that cannot be found in textbooks alone. Whether fiction or non-fiction, reading for even 20 minutes a day builds a lifelong foundation for learning.

5. Essay Writing

Structure (5 paragraphs)

1. Introduction — Define the topic; state your position. 2. Point 1 — First argument + example/evidence. 3. Point 2 — Second argument + example/evidence. 4. Counter-argument — Acknowledge the opposite view and refute it. 5. Conclusion — Summarise and end with a strong closing statement.

Useful Connectives

To add: Furthermore, Moreover, In addition
To contrast: However, On the other hand, Nevertheless
To conclude: Therefore, In conclusion, To summarise
To give examples: For instance, For example, Such as

6. Diary Entry Format

[Day, Date]
[Time] (optional)
Dear Diary,

[Write in first person; express thoughts and feelings freely]
[Reflect on events of the day and your reaction to them]

[Your Name / Signature]

Common Writing Mistakes to Avoid

Do NOT skip the subject line in formal letters.
Do NOT use "Yours faithfully" with a named salutation (Dear Mr Kumar) — use "Yours sincerely."
In notices, always mention date, time, venue, and purpose — missing any loses marks.
Paragraphs must have a topic sentence — do not start with "Firstly" or "Also."
Proofread for subject-verb agreement before submission.

Frequently Asked Questions

Common formats: formal letter (complaint, application, inquiry), informal letter to a friend, notice writing, descriptive paragraph, and short essay. Letters carry 10 marks each.