Sections 27 to 30 of the Sale of Goods Act, 1930 govern a question that the law of property answers in the negative and the law of commerce demands answering in the positive: when can a non-owner transfer ownership of goods to a buyer? Section 27 SoGA codifies the maxim nemo dat quod non habet — no one can give what he himself has not got — as the general rule. Sections 27 to 30 SoGA then carve six statutory exceptions in favour of the bona fide purchaser. The architecture is therefore one of rule plus enumerated exceptions: a buyer from a non-owner ordinarily acquires no title, but in six identified situations he acquires a title good against the true owner. The chapter that follows builds the doctrine in three movements: the rule, the six exceptions, and the doctrinal cognates and exam-angle distinctions.
The cluster sits squarely between the chapters on passing of property under Sections 18 to 25 SoGA and the chapter on risk under Section 26 SoGA. The earlier cluster fixes when ownership passes between contracting parties; Section 26 fixes who bears the loss; Sections 27 to 30 fix what happens when ownership has not passed because the seller never had it to give. The exam-aspirant should remember that nemo dat addresses a third dimension altogether — the contest between two innocent parties (the true owner and the bona fide buyer) over an article that has passed through fraudulent or unauthorised hands.
Statutory anchor — Section 27 SoGA
The Section reads as the sum of: a general rule (nemo dat); a first exception (estoppel by conduct of the owner) included in the closing words of the principal sentence; and a second exception (mercantile agent) carved out by the proviso. Sections 28, 29 and 30 add four more exceptions — joint owners, voidable title, seller in possession after sale, and buyer in possession before passing of property. Section 54(3) supplies a seventh exception in the unpaid-seller chapter. English law also recognised a “market overt” exception which has never had statutory force in India.
The general rule — nemo dat quod non habet
The rule protects the true owner. A buyer cannot acquire a better title than his seller had; if the seller's title was defective, the buyer's title is defective. The rule has the consequence that a thief, a finder, or a person in possession by trick cannot give a good title to anyone, however bona fide the eventual buyer may be. The principle was applied with particular rigour in National Employees' Mutual General Insurance Association Ltd. v. Jones (The Times, 6 April 1987): a stolen car passed through the hands of several bona fide buyers, none with notice of the theft, and yet none acquired a good title.
The rule serves a clear policy. Property law presumes stable ownership; commerce presumes bona fide transactions; the two presumptions clash whenever an owner has been defrauded or robbed. The Sale of Goods Act resolves the clash by enacting a default in favour of the owner and a series of carve-outs in favour of the bona fide buyer where commercial necessity demands. The carve-outs are what the rest of this chapter is about.
First exception — sale under the implied authority of the owner (estoppel)
The closing words of Section 27 SoGA — “unless the owner of the goods is by his conduct precluded from denying the seller's authority to sell” — embed the doctrine of estoppel within the nemo dat rule. Where the true owner, by his act or omission, has held out the seller as having authority to sell, he cannot afterwards deny that authority and recover the goods from a buyer who has dealt with the seller on the faith of that holding out. The classical illustration — paralleling the wider law of the contract of sale and the autonomy of the parties under Section 4 SoGA — runs as follows: a person sells his mother's goods in her presence, and she makes no objection; she cannot afterwards deny her son's authority to sell, and the buyer's title is good. Estoppel arises from a representation — express, by conduct, or by acquiescence — that the seller has authority. The owner's silence, where he was reasonably expected to speak, is an omission that may found the estoppel.
Second exception — sale by a mercantile agent (proviso to Section 27)
The proviso to Section 27 SoGA is the most heavily litigated of the exceptions. It validates a sale by a mercantile agent in possession of the goods or documents of title to the goods with the consent of the owner, made in the ordinary course of business of a mercantile agent, to a buyer in good faith and without notice that the agent had no authority to sell. Four cumulative conditions must be satisfied.
- The seller must be a mercantile agent within the definition in Section 2(9) SoGA — a person whose customary course of business as such an agent gives him authority to sell goods, consign goods for sale, buy goods, or raise money on the security of goods. A clerk in a merchant's office is not a mercantile agent; a broker or auctioneer is. The supporting definitional architecture — buyer, seller, price, possession, document of title — is set out in the chapter on the definitions in Section 2 SoGA.
- The agent must be in possession of the goods or documents of title with the consent of the owner and in his capacity as a mercantile agent. Possession obtained by theft does not satisfy the limb. Possession obtained in some other capacity — for instance, as a neighbour or bailee for safe custody — also does not satisfy the limb, even if the person also happens to be a mercantile agent in his day job.
- The agent must sell in the ordinary course of business of a mercantile agent. A sale at an unusual time, in an unusual place, at a manifestly low price, or in a manifestly irregular manner, is not in the ordinary course of business and does not attract the proviso.
- The buyer must act in good faith and without notice that the agent had no authority to sell. The burden of proof on these last two limbs lies on the buyer.
The leading authority on the consent-and-capacity limb is Folkes v. King (1923) 1 KB 282. An agent was entrusted with a car for sale subject to a reserve price. He sold below the reserve, contrary to instructions, and pocketed the proceeds. The buyer was held to have acquired a good title because the agent's possession was with the consent of the owner; that consent, the court held, was not vitiated by the agent's fraud. A consent induced by false representation may not be free, but it can nevertheless be real. Pearson v. Rose & Young Ltd. (1950) 2 All ER 1027 then narrowed the limb. A car was given to a mercantile agent to obtain offers but not to sell; the registration book was obtained from the owner by a trick. The Court of Appeal held that the sale of a second-hand car without a registration book was not “in the ordinary course of business” and that, even if the car was held with consent, the registration book was not. The buyer's title therefore failed.
Staff Motors Guarantee Ltd. v. British Wagon Ltd. (1934) 2 KB 305 illustrates the capacity-of-possession limb. Heap, a mercantile agent, sold his lorry to the defendants and then re-took it on hire-purchase from them. He thereafter purported to re-sell it to the plaintiffs on the false representation that he was the owner. The defendants seized the lorry on default. The plaintiffs failed because Heap, on the facts, held the lorry as a hire-purchase bailee and not in his capacity as a mercantile agent.
Third exception — sale by one of joint owners (Section 28)
Section 28 SoGA validates a sale by one of several joint owners who is in sole possession of the goods with the permission of the others, where the buyer takes in good faith and without notice that the joint owner had no authority to sell. The exception is narrow but important: it protects the bona fide buyer where one of several co-owners, having been given physical custody of the article, abuses the trust and sells it without the consent of the others. The contrast with hire-purchase, bailment, pledge and mortgage transactions — where possession-based protection works very differently — is treated in the chapter on sale distinguished from hire-purchase and other related transactions.
Fourth exception — sale under voidable contract (Section 29)
Section 29 SoGA validates a sale by a person who has obtained possession under a contract voidable on grounds of coercion, fraud, misrepresentation or undue influence under Section 19 (or Section 19A) of the Indian Contract Act, 1872, provided the contract has not yet been rescinded at the time of the sale and the buyer takes in good faith and without notice of the seller's defect of title. The principle is that a voidable contract is operative until rescinded; transactions concluded during its operative period are valid.
The leading authority is Phillips v. Brooks (1919) 2 KB 243. A fraudulent person represented himself as a respectable purchaser and obtained a valuable ring from a shopkeeper against a worthless cheque. Before the fraud was discovered, the rogue had pledged the ring with a bona fide pledgee. The court held that the pledgee had a good title: the contract with the rogue was voidable for fraud, but it had not been rescinded at the time of the pledge, and the goods had passed into the hands of a third person before rescission.
Two limits must be remembered. First, Section 29 does not apply where the contract is void rather than voidable — for instance, where the rogue obtains the goods by impersonating an actual third party so that the owner consented to deal with that third party and not with the rogue. The mistake of identity makes the contract void ab initio, no title passes to the rogue at any moment, and the bona fide buyer cannot be protected. Second, Section 29 does not apply once the contract has been rescinded at the time of the sale to the bona fide buyer; the usual method of rescission is by giving notice to the other party, but where the rogue cannot be traced, the owner may rescind by doing whatever is reasonably possible to recover the goods.
Fifth exception — sale by seller in possession after sale (Section 30(1))
Section 30(1) SoGA addresses a different fraud-pattern. Where a seller has sold the goods and property has passed to the buyer, but the seller continues in possession of the goods or of the documents of title, a subsequent delivery or transfer by the seller (or by a mercantile agent on his behalf) under any sale, pledge or other disposition, to a person who receives in good faith and without notice of the previous sale, conveys a good title to that person. The object of the Section is to protect the bona fide buyer who has dealt with a person carrying all the trappings of ownership but has, in truth, parted with title to a previous buyer.
The textbook illustration is direct: A sells goods to B; B leaves the goods with A for his own convenience; A fraudulently sells the goods to C, who buys in good faith without notice. C gets a good title. The same logic applies if A had pledged or mortgaged the goods to C. The leading judicial authority is City Fur Manufacturing Co. v. Fureenbond Ltd. (1937) 1 All ER 799. Herman bought lots of fur from auctioneers who held the goods pending payment; while still owing money to the auctioneers, Herman sold some skins to the plaintiffs and then pledged the same skins with the defendants, using the defendants' advance to pay off the auctioneers. The court held that, on payment to the auctioneers, the property in the skins had passed to Herman and then to the plaintiffs; but Section 30(1) protected the defendants, who had taken the pledge in good faith without notice of the prior sale. As between two innocent parties — the prior buyer and the subsequent pledgee — the prior buyer had to suffer.
One important qualification: the exception does not apply where the sale to the first buyer was completed by physical delivery and the goods were later returned to the seller for a particular limited purpose. Staff Motor Guarantee Ltd. v. British Wagon Co. (1934) 2 KB 305 illustrates the limit. Where, after delivery to the first buyer, the seller obtains the goods back as a hire-purchase bailee, his subsequent sale to a third party does not attract Section 30(1).
Sixth exception — sale by buyer in possession before property has passed (Section 30(2))
Section 30(2) SoGA addresses a buyer who is in possession of goods or documents of title with the consent of the seller, but in whom property has not yet passed. Any sale, pledge or other disposition by such a buyer to a person receiving in good faith and without notice of any lien or other right of the original seller conveys a good title to that person. The buyer here is a person who buys or agrees to buy. A person who has taken the goods on hire-purchase has not “agreed to buy” within Section 30(2) and cannot pass good title — Helby v. Matthews (1895) AC 471 is the leading authority on the negative limb.
Two judicial illustrations frame the working scope. Central National Bank v. United Industrial Bank (AIR 1954 SC 187) is the leading Indian authority on the consent limb. Bhuiya, the owner of certain shares, agreed to sell them to Mukherjee and instructed the defendant bank, where the certificates were lodged, to deliver them against payment. Mukherjee inspected the certificates, deceived the bank manager, and absconded with them without payment; he then pledged the shares with the plaintiff bank for an advance. The Supreme Court held that the consent required by Section 30(2) need not be free consent but must be real consent — and that, on the facts, the bank manager had not consented to deliver at all; Mukherjee had effectively stolen the certificates. Section 30(2) was therefore not satisfied, and the plaintiff bank's pledge failed against the true owner. The chapter on the subject-matter of a contract of sale and the goods classification under Section 6 SoGA supplies the underlying typology of specific, ascertained and unascertained goods on which the buyer-in-possession analysis ultimately turns. Cahn v. Pockett's Bristol Co. (1899) 1 QB 643 is the converse case where consent was found: B had received the bill of lading from A under contract though without accepting the bill of exchange; B's subsequent transfer of the bill of lading to C, who took in good faith, conveyed a good title to C, defeating A's right to stop the goods in transit. Morvi Mercantile Bank v. Union of India (AIR 1965 SC 155) extended the same protection to bona fide pledges of railway receipts as documents of title to the goods they represented.
Doctrine on the page is one thing. MCQs are another.
Topic-tagged MCQs from previous-year papers and original mocks — calibrated to actual exam difficulty.
Take the civil-law mock →Seventh exception — resale by an unpaid seller (Section 54(3))
Section 54(3) SoGA, although outside the 27 to 30 cluster, is conventionally treated as a seventh statutory exception to the nemo dat rule. Where an unpaid seller has exercised the right of lien or stoppage in transit and re-sold the goods, the second buyer acquires a good title as against the original buyer, even though no notice of the resale was given to the original buyer. The chapter on the unpaid seller's right of resale under Section 54 SoGA works through the doctrine in detail; the chapter on the right of stoppage in transit under Sections 50 to 52 SoGA covers the precondition.
Sale in market overt — the missing English exception
English common law recognised an exception under which a sale in market overt — a sale, in the open market, of goods of a kind in which the seller normally dealt, in accordance with the usage of the market — passed a good title to a bona fide buyer. The doctrine had no statutory home in India and is not part of Indian sale-of-goods law. Indian buyers must rely instead on the six statutory exceptions catalogued in Sections 27 to 30 SoGA and on Section 54(3).
Documents of title and bona fide pledge
The Sections 27 to 30 cluster repeatedly references “documents of title to goods”. The expression is defined in Section 2(4) SoGA to include a bill of lading, dock-warrant, warehouse-keeper's certificate, wharfinger's certificate, railway receipt, multimodal transport document, warrant or order for the delivery of goods and any other document used in the ordinary course of business as proof of the possession or control of goods. Where a person in possession of such a document — owner, mercantile agent, seller in possession, or buyer in possession — transfers it for value to a bona fide transferee, the transfer is treated, for the purposes of the exceptions, as if it were a transfer of the goods themselves. Morvi Mercantile Bank v. Union of India (AIR 1965 SC 155) is the controlling Supreme Court authority. The point is doctrinally important because a great deal of commercial credit is extended against documents of title; the law has had to extend the nemo dat exceptions to these documents to support the working of trade finance.
Distinguish from cognate provisions
Three cognate axes are worth fixing in mind. First, the implied condition as to title under Section 14(a) SoGA — the seller's implied condition that he has a right to sell — is the buyer's positive remedy against a non-owner seller. Where the buyer has bought from a non-owner and is dispossessed by the true owner, he can sue the seller for total failure of consideration on the authority of Rowland v. Divall (1923) 2 KB 500. The relationship of Section 14(a) to the implied conditions of title, description, sample and merchantable quality and the broader scheme of conditions and warranties under Section 12 SoGA is an important parallel axis to Sections 27 to 30. Second, the chapter on sale distinguished from hire-purchase, bailment, mortgage and pledge is decisive for Section 30(2): a hire-purchase taker is not a buyer who has agreed to buy, and his sale to a third party is therefore not protected. Third, the doctrine of caveat emptor under Section 16 SoGA operates on a different question — quality and fitness — and cannot save a buyer from a defective title; Section 14(a) is the applicable implied term, not Section 16. The two doctrines must therefore be carefully kept apart.
MCQ angle and exam framing
The cluster yields a familiar set of fact-patterns. (a) Stolen car re-sold through a chain of bona fide buyers — Section 27 main rule, no exception attracts, true owner recovers. (b) Mother stands silent while her son sells her articles to a buyer — first exception, estoppel on the owner, buyer's title is good. (c) Car given to an agent for sale subject to reserve price; agent sells below reserve; buyer in good faith — proviso to Section 27 and Folkes v. King; buyer's title is good. (d) Car given to an agent to obtain offers, not to sell; agent obtains the registration book by trick; agent sells — Pearson v. Rose; buyer's title fails. (e) Co-owner in sole possession with co-owners' permission sells the article — Section 28; buyer's title is good. (f) Rogue obtains a ring against a worthless cheque and pledges it before the fraud is discovered — Section 29 and Phillips v. Brooks; pledgee's title is good. (g) Seller resells goods to a second buyer after the first sale, while the goods are still in his possession — Section 30(1) and City Fur; second buyer's title is good. (h) Buyer in possession before property has passed pledges goods to a bank — Section 30(2) and Cahn v. Pockett; pledgee's title is good. (i) Unpaid seller exercises lien and resells — Section 54(3); second buyer's title is good. The cluster also interacts with the doctrinal architecture of Sections 18 to 25 SoGA — a seller in possession after sale presupposes that property has passed; a buyer in possession before passing presupposes that property has not yet passed. The exam-aspirant should always identify which side of the passing-of-property line the facts sit before reaching for an exception. Comprehensive coverage of the doctrine sits within the Sale of Goods Act notes hub.
Conclusion
Sections 27 to 30 SoGA strike a calibrated balance. The general rule of nemo dat protects the true owner against fraud and theft. The six statutory exceptions — estoppel, mercantile agent, joint owners, voidable title, seller in possession, buyer in possession — protect the bona fide buyer where commercial necessity demands. Section 54(3) supplies a seventh exception in the unpaid-seller chapter. The exceptions are exhaustive: the English market-overt doctrine has no Indian counterpart, and the courts have read the existing exceptions strictly. The doctrinal architecture rewards careful classification: identify the seller's status (true owner, mercantile agent, joint owner, recipient under voidable contract, seller in possession after sale, buyer in possession before passing), identify the buyer's status (bona fide and without notice or otherwise), and then map the facts to one or more of the six exceptions. The case law of Folkes v. King, Pearson v. Rose, Phillips v. Brooks, City Fur, Central National Bank, Cahn v. Pockett and Morvi Mercantile Bank is the working ground.
Frequently asked questions
What is the rule of nemo dat quod non habet under Section 27 of the Sale of Goods Act?
The rule is that no one can give what he himself has not got. Section 27 SoGA provides that where goods are sold by a person who is not the owner and who does not sell with the authority or consent of the owner, the buyer acquires no better title than the seller had. A thief, finder or unauthorised possessor therefore cannot pass title, however bona fide the buyer may be. The rule protects the true owner against fraud and theft, and is qualified only by the six statutory exceptions in Sections 27 to 30 SoGA and the unpaid-seller resale exception in Section 54(3).
When does the mercantile-agent exception under Section 27 proviso apply?
Four conditions must coexist. The seller must be a mercantile agent within Section 2(9) SoGA. He must be in possession of the goods or documents of title with the consent of the owner, and in his capacity as a mercantile agent. He must sell in the ordinary course of business of a mercantile agent — at a normal time, at a normal place, in a normal way. And the buyer must take in good faith and without notice that the agent had no authority. Folkes v. King (1923) is the leading consent-and-fraud authority; Pearson v. Rose (1950) narrows the ordinary-course-of-business limb.
What is the difference between Section 29 and Section 30(2) SoGA?
Section 29 protects the buyer from a person who is in possession under a contract voidable for fraud, coercion, misrepresentation or undue influence under Section 19 ICA, where the contract has not been rescinded at the time of the sale. Section 30(2) protects the buyer from a person who has bought or agreed to buy, has taken possession with the consent of the seller, but in whom property has not yet passed. Section 29 turns on a defective consent that can still be repaired by rescission; Section 30(2) turns on the consensual delivery of possession to a person who is, on any view, a buyer or agreer-to-buy, not on rescission.
Does a hire-purchase taker fall within Section 30(2) SoGA?
No. Section 30(2) requires that the seller be a person who has “bought or agreed to buy” goods. A hire-purchase taker has only an option to purchase, exercisable on payment of all the instalments; he has not agreed to buy unconditionally. Helby v. Matthews (1895) is the leading authority. A sale by a hire-purchase taker to a third party therefore does not pass good title under Section 30(2). The third party must rely on some other exception, typically the mercantile-agent proviso to Section 27, if it can be made out on the facts; otherwise his title fails against the true owner.
Does the English doctrine of market overt apply in India?
No. The market-overt exception, recognised at English common law, allowed a bona fide buyer in the open market — buying goods of a kind in which the seller normally dealt, in accordance with the usage of that market — to acquire a good title even from a non-owner. The doctrine has never been enacted into Indian law and does not feature in Sections 27 to 30 SoGA. An Indian buyer must therefore rely on one of the six statutory exceptions in Sections 27 to 30 SoGA, or the unpaid-seller resale exception in Section 54(3), to defeat a claim by the true owner. The market-overt route is closed.