Writing a complaint letter is an essential skill for students and individuals alike. Whether you’re addressing an issue at school, work, a government office, or even a business, knowing how to communicate your concerns formally and clearly can make a real difference.
In this guide, we’ll walk you through the structure of a complaint letter and provide few well-written sample letters on different topics. These examples follow a student-friendly format and are ideal for practice, school assignments, and real-life use.
Format of a Complaint Letter
A standard complaint letter includes the following parts:
- Sender’s Address
- Date
- Receiver’s Address (such as the principal, manager, or officer)
- Subject Line
- Salutation (Respected Sir/Madam)
- Body of the Letter:
- Introduction: Mention your identity and the purpose
- Details of the Complaint: Be clear and factual
- Request for Action
- Closing line (Thanking You, Yours faithfully, etc.)
- Signature/Name
All samples below follow this format in paragraph style, suitable for Indian students.
Complaint Letter Samples
1. Complaint Letter to Principal for Cleanliness Issues in School
Sender’s Address:
123 M.G. Road,
Delhi – 110001
Date: 17 July 2025
To,
The Principal,
ABC Public School,
Delhi
Subject: Request to improve school cleanliness
Respected Sir/Madam,
I am a student of Class IX A of your school. I am writing to bring to your notice the deteriorating cleanliness in our school premises. The school corridors, washrooms, and playgrounds are often dirty and not cleaned regularly. This has led to an increase in mosquitoes and flies, which may cause health issues among students.
I request you to look into this matter urgently and ensure regular sanitation in all areas of the school. A clean environment will promote better health and improve concentration among students.
Thanking you,
Yours sincerely,
Riya Sharma
Class IX A
Also read: essay on cleanliness
2. Complaint Letter to Electricity Department for Frequent Power Cuts
Sender’s Address:
45 B, Laxmi Nagar,
Nagpur – 440001
Date: 17 July 2025
To,
The Executive Engineer,
Electricity Department,
Nagpur
Subject: Complaint regarding frequent power failures
Respected Sir/Madam,
I am a resident of Laxmi Nagar and would like to bring to your attention the issue of frequent power cuts in our locality. These outages occur daily and last for several hours, disrupting our daily activities and causing inconvenience, especially during the hot summer months.
This issue has also affected students’ studies and home appliances. I request you to take immediate steps to resolve this problem by inspecting the power lines or upgrading the infrastructure.
Thanking you,
Yours faithfully,
Vikram Singh
Explore: essay on electricity
3. Complaint Letter to Municipal Corporation for Poor Drainage System
Sender’s Address:
C-15, Patel Nagar,
Jaipur – 302001
Date: 17 July 2025
To,
The Municipal Commissioner,
Jaipur Municipal Corporation
Subject: Poor drainage system causing waterlogging
Respected Sir/Madam,
I would like to draw your attention to the poor drainage in Patel Nagar. During the rainy season, the drains overflow, causing waterlogging on roads. This makes commuting difficult and increases the risk of waterborne diseases.
Despite previous complaints, no action has been taken so far. I request your urgent intervention to repair and clean the drainage lines to prevent further health hazards.
Thanking you,
Yours sincerely,
Alok Meena
Related: essay on rainy season
4. Complaint Letter to Bank Regarding Unauthorized Transaction
Sender’s Address:
78 Park Avenue,
Chennai – 600018
Date: 17 July 2025
To,
The Branch Manager,
State Bank of India,
Chennai
Subject: Complaint about unauthorized debit transaction
Respected Sir/Madam,
I am an account holder at your bank (Account No: XXXXXXX). On 15 July 2025, an amount of ₹5,000 was deducted from my account without my knowledge. I did not authorize this transaction, and I suspect it to be fraudulent.
Kindly investigate this issue urgently and help reverse the transaction. Please also ensure that my account is secure from such unauthorized access in the future.
Thanking you,
Yours sincerely,
Neha Verma
Helpful link: Essay on banking system
5. Complaint Letter to Police Station about Loud Noises at Night
Sender’s Address:
Flat 12B, Green Residency,
Lucknow – 226010
Date: 17 July 2025
To,
The Station House Officer (SHO),
Gomti Nagar Police Station,
Lucknow
Subject: Complaint about noise pollution from a nearby venue
Respected Sir/Madam,
I am a resident of Green Residency in Gomti Nagar and want to report regular loud music and noise coming from a banquet hall near our society. This happens almost every night and continues till late, disturbing the peace of the neighborhood.
Several senior citizens and students reside in this area, and the noise affects our sleep and studies. Please take strict action and instruct the owners to follow the noise regulations.
Thanking you,
Yours faithfully,
Arjun Pathak
Read more: Essay on noise pollution
6. Complaint Letter to Post Office for Delay in Speed Post Delivery
Sender’s Address:
House No. 304, Sector 5,
Chandigarh – 160017
Date: 17 July 2025
To,
The Postmaster,
Head Post Office,
Chandigarh
Subject: Complaint regarding delay in delivery of important document
Respected Sir/Madam,
I had sent a speed post (Tracking ID: AB123456789) from Chandigarh to Delhi on 10 July 2025. The package contained important academic documents. As of today, 17 July, the post has still not been delivered.
This delay may cause problems in my college admission process. I kindly request you to look into the matter urgently and ensure delivery at the earliest.
Thanking you,
Yours sincerely,
Kavita Sharma
You might like: Essay on importance of communication
Conclusion
Complaint letters are an important part of formal communication. By learning how to write them properly, you become a more confident and responsible citizen. Make sure to follow the format, be polite yet firm, and mention all facts clearly. The more you practice, the better you’ll get!
Keep exploring more formats like notice writing, essay writing, and application writing.