Preparing interactive calculation engine
Preparing interactive calculation engine
Learn to draft official letters of complaint regarding defective products, poor civic services, public grievances, and damaged shipments using a formal, objective register.
A Complaint Letter is a formal letter written to an official, manager, or authority to express dissatisfaction regarding a defective product, substandard service, civic nuisance, or administrative negligence. It aims to seek immediate corrective action, replacement, refund, or repair.
Sender Address
Address of the writer (top-left, 2-3 lines).
Date
Formal date format (e.g., 28th October 2026).
Receiver Designation & Address
Official designation and full postal address of the recipient (e.g., The Sales Manager, M/s Electronics Store).
Subject Line
Concise summary starting with "Complaint regarding..." highlighting the issue.
Salutation
Formal opening (e.g., Respected Sir / Madam).
Paragraph 1: Problem Statement
State the purpose of the letter, item/order details, purchase date, and invoice number.
Paragraph 2: Specific Faults & Impact
Elaborate on the specific defects, operational failures, or inconvenience suffered.
Paragraph 3: Remedy & Deadline
Request immediate resolution (replacement, repair, or refund) within a specific timeframe.
Sign-off Block
Subscription ("Yours faithfully" or "Yours sincerely") followed by signature and full name.
Review the physical arrangement of components. Follow this layout strictly in exam papers.
Toggle the annotations filter to highlight structure details within the text.
B-402, Sunshine Apartments
Sector 62, Noida
Uttar Pradesh - 201301
18th October 2026
The Customer Service Manager
Croma Electronics Store
Sector 18, Noida - 201301
Subject: Complaint regarding defective automatic washing machine (Invoice No. CR/8492)
Sir,
I am writing to express my extreme disappointment regarding a Whirlpool Fully Automatic Washing Machine (Model: WM-700X) purchased from your outlet on 5th October 2026 vide Cash Memo No. CR/8492.
For the first week, the appliance worked satisfactorily. However, for the last three days, the machine has developed serious operational defects. The spin dryer makes a loud screeching noise and fails to drain water. Additionally, water leaks heavily from the bottom panel during the rinse cycle, causing flooding on the balcony floor.
Since the machine is well within the 2-year comprehensive warranty period, I request you to send a technician to inspect and replace the defective spin pump immediately. If the fault cannot be rectified, kindly arrange for a full replacement of the unit.
I have enclosed a copy of the purchase invoice and warranty card for your reference. I expect a prompt resolution within 5 working days.
Yours faithfully,
Rajesh Verma
Includes product name and invoice number for instant identification.
Provides proof of purchase references.
Clearly details the exact technical failures experienced.
States exact expected solution (repair or replacement).
12, Green Park Extension
New Delhi - 110016
5th November 2026
The Municipal Commissioner
Municipal Corporation of Delhi (MCD)
Civic Centre, Minto Road
New Delhi - 110002
Subject: Complaint regarding insanitary conditions and uncollected garbage in Green Park
Respected Sir,
I wish to bring to your urgent attention the rapidly deteriorating sanitary conditions in Green Park Extension due to negligence by local sanitation workers.
For the past two weeks, garbage dumps on Main Street have not been cleared. Huge piles of decomposing waste are lying open, attracting swarms of flies, mosquitoes, and stray animals. The foul stench has rendered it impossible for residents to open their windows. With recent monsoon rains, stagnant filthy water surrounding the dump has turned the area into a breeding ground for dengue and malaria.
Despite multiple verbal complaints to the Ward Inspector, no action has been initiated. I request you to intervene personally and direct the sanitation department to clear the garbage immediately and disinfect the locality with bleaching powder.
Thanking you,
Yours sincerely,
Meenakshi Sundaram
(President, Resident Welfare Association)
Addressed directly to the civic authority responsible for public health.
Highlights the severe public health risk to motivate quick civic intervention.
House No. 108, Model Town
Jalandhar, Punjab
12th September 2026
The Executive Engineer
Punjab State Power Corporation Limited (PSPCL)
Model Town Sub-Division, Jalandhar
Subject: Complaint regarding unannounced power cuts and low voltage in Model Town
Sir,
On behalf of the residents of Model Town, I am writing to draw your attention to the persistent power crisis in our locality over the past three weeks.
Unannounced power cuts lasting 4 to 6 hours daily have become a routine occurrence. To make matters worse, when power is restored, the voltage fluctuates severely, dropping below 140V. This has caused severe damage to domestic appliances including refrigerators, air conditioners, and water pumps.
Students preparing for upcoming board examinations are suffering immensely due to night blackouts. We request you to repair the overloaded local transformer and restore stable electricity supply without delay.
Yours faithfully,
Harpreet Singh
Summarizes power outages and voltage issues concisely.
Department of Physics
St. Joseph Higher Secondary School
Chennai - 600004
20th November 2026
The Sales Manager
M/s Scientific Glassware & Instruments Ltd.
Industrial Estate, Guindy
Chennai - 600032
Subject: Complaint regarding damaged shipment of Physics Lab Equipment (PO # PHY-902)
Dear Sir,
We received consignment No. SGI/7710 containing glass apparatus ordered vide Purchase Order PHY-902 dated 10th November 2026.
Upon unpacking the parcel today, we discovered that 15 optical glass prisms and 10 graduated measuring cylinders were severely cracked due to inadequate bubble wrapping and mishandling during transit. A detailed breakage report signed by our lab assistant is attached.
Kindly replace the damaged items at the earliest or credit the equivalent amount (₹14,500) to our school account.
Yours faithfully,
Dr. V. Ramanathan
(Head of Physics Department)
Lists exact quantities and item descriptions damaged.
Flat 204, Vasant Kunj
New Delhi - 110070
8th August 2026
The Regional Manager
Delhi Transport Corporation (DTC)
Scindia House, Connaught Place
New Delhi - 110001
Subject: Complaint regarding irregular frequency of Bus Route No. 534
Sir,
I wish to highlight the immense inconvenience faced by daily commuters due to the irregular frequency of DTC Bus Route No. 534 (Vasant Kunj to Anand Vihar).
Buses scheduled every 15 minutes often fail to arrive for over an hour during peak morning office hours (8:00 AM to 10:00 AM). When a bus finally arrives, it is dangerous overflowing with passengers, forcing many office-goers and college students to travel on footboards.
I urge the transport management to deploy 4 additional CNG buses during morning and evening peak hours on this route.
Yours faithfully,
Sunita Kapoor
Suggests a specific operational improvement (adding 4 buses).
Review complete high-scoring answers accompanied by detailed evaluation comments.
Writing Prompt
"You are Anuj / Anuja living at 15, Mall Road, Shimla. You bought a digital camera 2 weeks ago which is not working properly. Write a complaint letter in 120-150 words to the Manager of Digital World, Shimla requesting replacement."
Model Response
Score: 5/5. Follows strict CBSE formal letter layout. Subject line includes model and bill number. Clear 3-paragraph structure with explicit defect descriptions and warranty replacement request within word limit.
Reorder the sentences to build a logically coherent, flowing structure. Use the arrows to shift positions.
Interactive Writing Prompt
"Write a letter of complaint to the Station House Officer (SHO) regarding rising cases of bike theft in your neighborhood."
Review your response against these core layout and rule requirements before finalizing.
Test your understanding of layout rules, salutations, word limits, and appropriate tone. You have 5 minutes to complete 5 multiple-choice questions.