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Business Communication · Business Correspondence

Types of Business Letters with Examples for CSEET

Updated 11 October 2026 · Fact-checked

Business letters are grouped by purpose: enquiry, quotation, order, complaint, adjustment, sales and collection letters. To solve a question, identify the purpose, use the standard layout, state facts clearly in the body, close with the action you want, and keep a polite, courteous tone. Write in short paragraphs.

Understand Types of Business Letters

A business letter is a formal written message sent between firms, or between a firm and a customer, supplier or bank. Each type of letter has one clear job. If you know the job, you know what to write.

The usual trade cycle shows how the letters connect. A buyer sends an enquiry to ask about goods. The seller replies with a quotation giving price and terms. The buyer sends an order. If goods are wrong, late or damaged, the buyer writes a complaint. The seller answers with an adjustment letter that accepts, partly accepts or refuses the claim. Separately, the seller writes sales letters to win customers and collection letters to recover unpaid dues.

A quotation is the seller's offer. It states price, quantity, discount, delivery time, payment terms and how long the offer stays valid. An order must be precise: item, quantity, price, delivery date, place and mode of payment. A complaint must state facts and the remedy you want, and must not be rude.

A sales letter follows the AIDA idea: get Attention, create Interest, build Desire, prompt Action. A collection letter is usually sent in stages: a gentle reminder, a firmer follow-up, then a final notice. The tone gets firmer but stays polite so the customer relationship is not lost.

In the exam you are asked to draft a letter for a given situation. Marks go for format, content, clear language and tone.

Key rules to remember

Standard layout
Sender's address → Date → Receiver's address → Subject line → Salutation → Body → Complimentary close → Signature and name
Use this order for every letter. Do not leave out the subject line.
Enquiry letter content
Source of information + goods wanted + price, discount, terms, delivery + request for reply
State clearly what you need. Mention if you may place a bulk order.
Quotation content
Thanks + price + discount + packing and delivery + payment terms + validity period
Always include how long the offer is valid.
Order letter content
Reference to quotation + item, quantity, rate + delivery date and place + payment mode
Be exact. Vague orders cause disputes.
Complaint letter content
Reference of order + exact fault + inconvenience caused + remedy sought + deadline
Stay factual and polite.
Sales letter (AIDA)
Attention → Interest → Desire → Action
End with a clear call to action such as a visit or call.
Collection letter stages
Reminder → Follow-up → Strong appeal → Final notice
Tone becomes firmer at each stage.

How to solve Types of Business Letters questions

Use this method for any question that asks you to draft a business letter.

  1. 1Read the question and name the letter type from its purpose: asking, offering, buying, complaining, resolving, selling or recovering.
  2. 2Note every fact given: names, dates, order numbers, amounts and the problem. Use only these facts. Do not invent new ones.
  3. 3Write the sender's address, date, receiver's address, subject line and salutation in the correct order.
  4. 4Open with the reason for writing in one sentence and refer to earlier letters or orders.
  5. 5Write the body in two or three short paragraphs: details first, then the request or remedy.
  6. 6Close with the action you expect and a polite line, such as a request for an early reply.
  7. 7Add the complimentary close, signature and designation. Check tone, spelling and that every fact is covered.

Quickest way: Purpose-Details-Action drafting

When to use it: Use it when you have about ten minutes for a letter question.

  1. Write the layout skeleton first: addresses, date, subject, salutation.
  2. Jot three points: purpose, key details, action wanted.
  3. Write one paragraph for each point.
  4. Finish with the close and signature, then re-read for missing facts.

Common mistakes in Types of Business Letters

  • Skipping the subject line or putting it in the wrong place

    Students treat it as optional.

    Fix: Place a short subject line after the receiver's address and before the salutation.

  • Writing an angry, rude complaint letter

    Students let the frustration in the situation show in the tone.

    Fix: State facts, name the remedy and keep a firm but courteous tone.

  • Leaving out price, quantity or delivery date in an order letter

    Students rush and forget that an order is a binding request.

    Fix: Use the checklist: item, quantity, rate, delivery, payment.

  • Quotation without a validity period

    Students forget it is a time-bound offer.

    Fix: Always state until when the prices hold.

  • Making a first collection letter threatening

    Students assume recovery means pressure.

    Fix: Start with a polite reminder and raise firmness only in later stages.

  • Inventing facts or using wrong salutation and close pairs

    Students try to make the letter longer, or mix up formats.

    Fix: Use only given facts. Pair 'Dear Sir' with 'Yours faithfully' and 'Dear Mr Sharma' with 'Yours sincerely'.

Worked examples

Example 1

Draft a complaint letter from Rohit Traders, Pune, to Shree Electricals, Mumbai. On 5 March you ordered 50 LED bulbs (Order No. 214). On 20 March, 12 bulbs arrived broken. Ask for replacement.

Show the solution
  1. Identify the type: complaint letter. Purpose: report damaged goods and seek a replacement.
  2. Write the layout: sender address, date, receiver address, subject 'Complaint regarding damaged goods – Order No. 214'.
  3. Salutation: 'Dear Sir'.
  4. Body paragraph 1: refer to the order of 5 March and say the goods arrived on 20 March.
  5. Body paragraph 2: state that 12 of the 50 bulbs were broken, probably due to poor packing.
  6. Body paragraph 3: request replacement of 12 bulbs within seven days, and ask them to pack better in future.
  7. Close with 'Yours faithfully', signature and name.

Answer: Rohit Traders, Pune [Date] The Manager, Shree Electricals, Mumbai Subject: Complaint regarding damaged goods – Order No. 214 Dear Sir, We ordered 50 LED bulbs on 5 March (Order No. 214). The goods reached us on 20 March. On opening the cartons, we found 12 bulbs broken. This appears to be due to poor packing. Please replace the 12 damaged bulbs within seven days. We also request you to pack goods more carefully in future. We value our dealings and hope for your early action. Yours faithfully, Rohit Traders

Example 2

Draft a short enquiry letter from Mehta Stationers, Surat, to Kumar Paper Mills, Ahmedabad, asking for rates of A4 paper, and write what the quotation reply should contain.

Show the solution
  1. Identify the type: enquiry letter, then the quotation reply.
  2. Write layout with subject 'Enquiry for A4 paper'.
  3. Open by saying how you learned of the firm, for example an advertisement.
  4. Ask for price per ream, trade discount, delivery time and payment terms, and mention that bulk orders may follow.
  5. Request a reply with samples if possible and close politely.
  6. For the reply: thank them, give rate per ream, discount, delivery, payment terms and offer validity.

Answer: Subject: Enquiry for A4 paper Dear Sir, We saw your advertisement for A4 paper and are interested in buying regularly. Please send your price list per ream, trade discount, delivery time and payment terms. If your rates suit us, we may place a bulk order. We look forward to an early reply. Yours faithfully, Mehta Stationers The quotation reply should thank Mehta Stationers, give the rate, discount, packing and delivery details and payment terms, state the validity period of the offer, and invite an order.

Exam tips

  • Learn one fixed layout and use it for every letter. Format marks are easy to earn.
  • Use only the facts in the question. Do not add extra names, amounts or dates.
  • Match tone to type: courteous for complaints, persuasive for sales, firm but polite for collection.
  • Always add the subject line and a clear closing request or action.
  • Keep the letter within the space and time you have. Clear short paragraphs score better than long ones.

Practice questions from Business Correspondence

Types of Business Letters in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Types of Business Letters: frequently asked questions

How do I draft a complaint letter in CSEET?

Use the standard layout and a subject line naming the order. State the fault with facts, say what remedy you want and by when, and keep a polite tone. Close with a request for prompt action.

What is the difference between an enquiry letter and a quotation?

An enquiry letter is written by the buyer to ask for details about goods. A quotation is the seller's reply with price, discount, delivery and payment terms, and a validity period.

What is an adjustment letter?

It is the seller's reply to a complaint. It may accept the claim and offer a remedy, accept it in part, or politely refuse it with reasons.

What are the stages of a collection letter?

Collection letters usually move from a polite reminder to a follow-up, then a firmer appeal and finally a last notice. Politeness is kept throughout to preserve goodwill.