Product Defect After Purchase: Consumer Rights and Evidence

When the Box Comes Home and the Trouble Begins

You ordered a refrigerator on a Sunday afternoon. The delivery boys carried it up two floors, plugged it in, took the photo, and left. By the next morning the freezer compartment was warm. The cooling never came back. You called the brand. You called the platform. They sent a technician. He shook his head, took photos, and said, "Sir, this unit has a fault, you will have to wait for the warranty process." Three weeks passed. Four. Then they sent a message saying physical damage was found and the warranty did not apply.

That is the moment most buyers feel cheated. They paid for a working refrigerator, not a paperwork fight. The good news is that Indian law gave them rights long before they pressed "Buy Now". The Sale of Goods Act 1930 builds certain promises into every sale, whether or not the seller writes them down. This article walks through those rights, explains how to choose between rejecting the product and demanding money, and tells you exactly what to keep in your file.

Condition vs Warranty: Why the Label Decides Everything

The first thing the law does is sort the seller's promises into two boxes — conditions and warranties. The difference looks technical but it controls what you can actually do.

Section 12 of the Sale of Goods Act 1930 explains it. A condition is a stipulation essential to the main purpose of the contract — its breach lets you treat the contract as repudiated and reject the goods. A warranty is collateral to the main purpose — its breach gives you only a claim for damages. The court is not bound by the label the parties used. As Section 12(4) makes clear, a stipulation may be a condition though called a warranty in the contract, and vice versa.

The classic illustration is Baldry v Marshall (1925). The buyer asked for a car "suitable for touring purposes". The dealer recommended a Bugatti. The car turned out to be unfit for touring, and the dealer pointed to a clause in the contract that called the 12-month mechanical guarantee the only "warranty". The court rejected the argument. The suitability of the car for touring was so vital to the bargain that it was a condition, not a warranty — the contract failed at its very purpose.

The same logic applies to your refrigerator. The promise that it will refrigerate is not a side note; it is the whole point. So a fundamental cooling failure is the breach of a condition.

Section 16: Fitness for Purpose and Merchantable Quality

The law's general default is caveat emptor — buyer beware. Section 16 of the Sale of Goods Act 1930 says there is no implied warranty or condition as to quality or fitness for any particular purpose, except in the cases the section itself carves out. Two of those exceptions matter for almost every dispute about a defective product.

Fitness for the buyer's particular purpose

Section 16(1) implies a condition that the goods will be reasonably fit for the buyer's purpose where:

• The buyer makes known to the seller, expressly or by implication, the particular purpose for which the goods are required;
• This is done so as to show that the buyer relied on the seller's skill or judgement; and
• The goods are of a description which it is in the course of the seller's business to supply.

The English case Priest v Last (1903) is the textbook example. A buyer asked a chemist for a hot-water bottle. The chemist showed him a rubber bottle. It burst when used and injured the buyer's wife. The court held that the chemist had impliedly been told the purpose — the article was required for use as a hot-water bottle — and the chemist was liable for breach of the implied condition of fitness.

The Indian version of the same logic comes through in the Kerala case of a defective wrist watch (Raghava Menon v Kuttappan Nair). The plaintiff bought a watch from a reputed firm. It would not keep correct time. The court said the purpose of buying a watch — to know the correct time — was implicit, the buyer relied on the seller's skill and judgement, and the seller was bound to replace it or refund the price.

The condition reaches further than people expect. In Grant v Australian Knitting Mills (1936), the buyer purchased underwear from a retailer who dealt in such garments. The garment contained chemical residues that gave him dermatitis. The Privy Council held that there was no need to expressly state the purpose — underwear is meant to be worn next to the skin — and the implied condition of fitness was breached.

Merchantable quality

Section 16(2) implies a different but related condition: where goods are bought by description from a seller who deals in goods of that description, there is an implied condition that the goods shall be of merchantable quality. The phrase, explained in Bristol Tramways v Fiat Motors (1910), means goods of such quality and in such condition that a reasonable buyer would, after a fair examination, accept them at the agreed price for the ordinary purpose for which goods of that kind are bought.

Indian courts have applied the test generously to consumers. A bottle of "Stone's Ginger Wine" that broke in the buyer's hand because of a defective bottle was held not to be of merchantable quality (Moralli v Fitch & Gibbons). Wheat damaged by moisture, no longer saleable as a "best quality" article, was held not of merchantable quality (Shivallingappa v Balkrishna). A radio set that started giving trouble two months after purchase was held to be in breach of both Section 16(1) and Section 16(2) (R.S. Thakur v N.C.E.C. Corpn., AIR 1971 Bom 97).

Sample, Description, and What the Goods Must Match

Two further protections sit alongside Section 16.

Sale by description (Section 15). When goods are sold by description — and that includes online listings, brochures, catalogues, brand names, and any verbal description by the salesperson — the goods supplied must correspond with the description. If they do not, you can reject. In the Bombay auction case Nicholson & Venn v Smith Marriott (1947), a set of napkins described as dating from the 17th century turned out to be 18th century — the buyer could reject. In Beale v Taylor (1967), even though the buyer had seen the car, he relied on a false description and was allowed to reject.

Sale by sample (Section 17). Where the contract is a sale by sample, three implied conditions kick in: the bulk must correspond with the sample in quality, you must have a reasonable opportunity to compare bulk and sample, and the goods must be free from latent defects that a reasonable examination of the sample would not reveal. In Godley v Perry (1960), a retailer tested toy catapults by pulling at the elastic — one later exploded in a child's hand. The latent-defect rule meant the wholesaler had to indemnify the retailer.

Where the sale is by sample as well as by description, both must match. Wallis v Pratt (1911) — the famous "common English sainfoin" seed case — made the principle clear. The seed delivered matched the sample, but neither was the variety described in the contract. The court allowed damages despite an exclusion clause, on the famous principle: once a condition, always a condition; only the remedy changes.

What If You Examined the Goods Before Buying?

The proviso to Section 16(2) is the seller's main shield: where the buyer has examined the goods, there is no implied condition as regards defects which the examination ought to have revealed. Two ideas matter here.

First, the proviso only kills protection for patent defects — those a person of ordinary prudence using due care would have spotted. Latent defects, hidden from a reasonable inspection, remain the seller's responsibility. The catapult in Godley v Perry looked perfect on a pull-test; its weakness was latent.

Second, you do not need to have actually completed a thorough examination. In Thornett & Fehr v Beers & Sons (1919), the seller offered the buyer a chance to inspect glue at his godown. The buyer was in a hurry and refused to ask for any cask to be opened. The glue turned out defective. The buyer argued he had not actually examined; the court held the proviso applied because the seller had given a full opportunity. To hold otherwise would protect buyers from their own carelessness.

Practical lesson: if you decide not to inspect carefully — for example, when buying online — you keep the protection on latent defects. You can lose protection on patent defects that a reasonable examination would have revealed. So always note the time, place, and circumstances of any inspection.

Reject the Goods or Claim Damages?

Once a breach is found, your options branch. Section 12(2) gives you the right to reject the goods if a condition is breached. Section 13 then gives you flexibility:

• Treat the contract as repudiated and reject the goods (Section 12(2)). You stop performance, return the goods, demand back the price.
• Waive the condition (Section 13(1)). You accept the goods as they are without bringing any action against the seller.
• Treat the breach of condition as a breach of warranty (Section 13(1)). You accept the goods and claim damages, instead of rejecting.

Section 13(2) takes the choice out of your hands in one situation: where the contract is not severable and you have already accepted the goods or part of them, breach of any condition by the seller can only be treated as a breach of warranty, not as a ground for rejection.

The Wallis v Pratt principle is worth remembering — once a condition, always a condition. Even when you can no longer reject because you have accepted, the underlying term remains a condition; only your remedy changes from rejection to damages, and an exclusion clause limited to "warranties" cannot save the seller.

Choose strategically. Rejection works best when the product is essentially worthless to you, you can return it without serious cost, and the seller has the means to refund. Damages work best when you have already used the product, replacement is unrealistic, or you want compensation for consequential losses such as repair bills, lost time, or harm caused by the defect. The Niblett tin-of-condensed-milk case (Niblett Ltd. v Confectioners' Materials Co.) is a useful study — the buyer had to pay to remove infringing labels and ended up suing for damages on the loss of value.

Civil Suit and the Consumer-Protection Forum Route

Two parallel paths exist for getting your money back or your replacement.

The first is a civil suit for breach of contract under the Sale of Goods Act 1930. You sue the seller for refund of the price, damages for the loss caused, or both. A civil suit can be filed in the appropriate civil court depending on the value of the claim. It is the right route where there is a serious sum involved, complex facts, or where you need a tailored remedy beyond what a consumer forum can give. If you dispute the underlying contract itself — for example, that you signed under pressure — you can read our piece on breach of contract and how to enforce your rights.

The second is the consumer-protection forum route. Indian consumer-protection law, in its current form, allows aggrieved buyers to file complaints before specialised consumer forums at district, state, and national level depending on the value involved. The forums can order replacement, refund, removal of defects, and compensation. The procedure is faster and cheaper than a civil suit, and a lawyer is not strictly required, although one helps in contested matters. This is usually the right first stop for ordinary product-defect complaints.

If your case involves complex technical evidence or significant financial loss — for example, a defective car or commercial machinery — it is worth getting a lawyer involved early. Pinaka Legal regularly assists Delhi consumers and small businesses in product-defect disputes, both before consumer forums and in civil courts.

The Evidence That Wins or Loses Your Case

Your case is only as strong as the file you build. Start the moment you suspect something is wrong, not the day you decide to fight.

• Bill or invoice. Original tax invoice with date, seller name, GSTIN, product description, and price. If you bought online, save the order confirmation, invoice PDF, payment receipt, and shipping label.
• Packaging and tags. Keep the original box, manuals, warranty card, accessories, and price tags. Throwing them away gives the seller easy arguments.
• Photographs and videos. Photograph the product from multiple angles. Record a short video showing the defect in action — a fan that does not spin, a screen with dead pixels, a phone that overheats, a refrigerator with no cooling. Keep the original files with their metadata.
• Listing and advertising. Save the listing page (URL, screenshots, date), the catalogue, the brochure, the website page, and any video advertisement. The description that influenced you matters under Section 15.
• Communication log. Save every WhatsApp chat, every email, every call recording (where lawful), and every customer-care ticket reference. Note the names and the dates. If a service person came home, get a written job sheet.
• Expert report. Where the defect needs technical proof — for example, that a battery has a manufacturing fault — get a written report from an authorised service centre or, where contested, an independent expert. A signed report on letterhead with the technician's name and qualifications is far more persuasive than a verbal statement.
• Written notice. Send a clear, dated, written notice to the seller setting out the defect, the relevant invoice, and the relief you want. Keep proof of dispatch — speed-post receipt, email delivery, courier receipt.
• Bank statements. If you paid in instalments or on a credit card, keep the bank statements showing the payments. Useful both for proof of consideration and for chargeback options where applicable.

One non-obvious tip: do not keep using a clearly defective product in a way that worsens it, then expect the seller to take it back. Use just enough to confirm the defect, document everything, and stop.

What Should I Actually Do Now?

If you have just discovered a defect, work through this list in order.

1. Stop the bleeding. Stop using the product if continued use can cause harm or worsen the damage. Do not throw away anything.
2. Lock in the evidence. Take photos and videos today. Save the listing page, the bill, the warranty card, the box, and every chat thread.
3. Inform the seller in writing. Send an email or WhatsApp the same day, in clear language, mentioning the defect and the date of purchase. Keep the message short and factual.
4. Decide your goal. Refund? Replacement? Repair? Damages for harm caused? Pick one or two clear outcomes; vague demands are easy to ignore.
5. Send a formal complaint. If informal attempts fail within a reasonable time — usually two to three weeks — escalate by sending a written legal notice setting out the breach and the remedy claimed.
6. Get an expert report if needed. For technical defects, obtain a written report from a qualified technician or an authorised service centre. This becomes your strongest single document.
7. Keep using one channel for communication. Many disputes get muddled because the buyer talks on the phone, on WhatsApp, on email, and in person at the showroom — and remembers nothing. Centralise your communication.
8. Choose your forum. For ordinary consumer disputes, the consumer-protection forum route is usually faster. For high-value or complex disputes, consult a lawyer about a civil suit under the Sale of Goods Act 1930.
9. Watch the calendar. All remedies have time limits. Do not let weeks slide into months without action; delay can be used against you.
10. Get help early. If the seller is large, well-resourced, or stonewalling, consult a lawyer at the notice stage rather than after a year of failed customer-care calls.

Frequently Asked Questions

I bought a product that turned out to be defective. What are my rights?

Under the Sale of Goods Act 1930, every contract of sale carries certain implied conditions and warranties. The most important are that the goods must be of merchantable quality, must match the description and any sample shown, and must be reasonably fit for the buyer's purpose where the buyer relies on the seller's skill or judgement. If the seller breaches an implied condition, you can reject the goods. If it is only a warranty, you can claim damages. You can also approach the consumer-protection forum route for a remedy.

What is the difference between a condition and a warranty?

Section 12 of the Sale of Goods Act 1930 distinguishes the two. A condition is a stipulation essential to the main purpose of the contract — its breach lets you treat the contract as repudiated and reject the goods. A warranty is collateral to the main purpose — its breach lets you only claim damages, not reject. The court is not bound by the label the parties used; it looks at how essential the term is to the bargain.

What is merchantable quality in simple words?

Merchantable quality means the goods are in such a condition that a reasonable buyer, after a fair examination, would accept them at the agreed price for the ordinary purpose for which goods of that kind are bought. Section 16(2) of the Sale of Goods Act 1930 implies this condition where you buy by description from a seller who deals in goods of that description. A radio that stops working after two months, a bottle that breaks while opening, or wheat damaged by moisture have all been held not to be of merchantable quality.

What does fitness for purpose mean?

Section 16(1) of the Sale of Goods Act 1930 says that if you tell the seller, expressly or by implication, the particular purpose for which you need the goods, and you rely on the seller's skill or judgement, and the seller deals in goods of that description, there is an implied condition that the goods will be reasonably fit for that purpose. The classic illustration is the Priest v Last hot-water bottle case — it must work as a hot-water bottle, including for applying heat to a human body.

When does my right to reject the goods get downgraded to only a damages claim?

Section 13 of the Sale of Goods Act 1930 says that if you waive the condition or treat its breach as a breach of warranty, you accept the goods and can only claim damages. The same downgrade happens automatically if the contract is not severable and you have already accepted the goods or part of them. The principle once a condition always a condition still holds — only the remedy changes from rejection to damages.

Can I reject only part of the goods and keep the rest?

Sometimes yes. Where the contract is severable — for example, separate consignments under a single order — and the defective lot is identifiable, you can reject the bad lot and keep the good. Where part is defective and part is not, courts have allowed buyers to reject the whole rather than be forced to pick and choose. The Jackson v Rotax Motor & Cycle Co. case allowed exactly that for badly polished and dented horns.

What if the seller showed me a sample and the bulk does not match?

Section 17 of the Sale of Goods Act 1930 implies three conditions in a sale by sample: the bulk must correspond with the sample in quality, you must get a reasonable opportunity to compare the bulk with the sample, and the goods must be free from latent defects that a reasonable examination of the sample would not reveal. Breach of any of these gives you the right to reject. Where there is a sale by sample as well as description, the goods must match both, not just one.

What if I examined the goods before buying and missed the defect?

It depends on whether the defect was patent or latent. The proviso to Section 16(2) says that if you examined the goods, there is no implied condition as regards defects which the examination ought to have revealed. So patent defects you should have noticed are your problem. Latent defects, which a reasonable examination would not reveal, remain the seller's responsibility — for example, the toy catapult that exploded in Godley v Perry despite being tested by pulling at the elastic.

Does it help if the seller wrote with all faults or no warranty?

Sometimes, but not always. Section 62 lets parties exclude implied terms by express agreement, course of dealing, or trade usage. Courts have, however, narrowed the effect of such clauses where the breach is fundamental — that is, where the goods supplied are essentially different from what was contracted. Pinnock Bros. v Lewis is the classic example, where copra cake adulterated with castor beans could not be defended by a latent-defect exclusion.

What evidence should I start collecting today?

Start with the bill or invoice and any warranty card. Photograph the product from several angles. Record videos showing the defect in action. Keep the original packaging, manuals, and tags. Save the listing page if you bought online, including the URL, date, screenshots, and order confirmation. Save every WhatsApp, email, and call log with the seller. Where the defect needs technical proof, get a written report from a qualified service centre or expert.

Where do I file a complaint about a defective product?

You have two broad options. One is a civil suit for breach of contract, which targets the seller for damages or for return of the price. The other is the consumer-protection forum route, which is faster, cheaper, and designed for ordinary consumers. The forum can order replacement, refund, or compensation. Choose based on the value, the urgency, and whether the relief you want is really money or a specific replacement. For online purchases in particular, you can read more on your rights when shopping online.

How fast should I act after I discover the defect?

Quickly. Inform the seller in writing as soon as possible — ideally the same day — and stop using the product where safe. Delay can be used against you later: the seller may argue you accepted the goods or that the defect arose from your use. Send a written legal notice within weeks if the seller is not cooperative. Sale of Goods Act remedies and consumer-forum remedies both have time limits, so do not let the matter drag for months without acting.

For more articles on Indian law, visit the Pinaka Legal Blog. Written by the Pinaka Legal Editorial Team. For queries, call +91 8595704798 or email info@pinakalegal.com.