CAIIB BRBL Commercial Laws — Contract Act, Transfer of Property Act & Limitation Act Complete Guide

Last updated by BankersClub on July 21, 2026

Quick Answer

What does BRBL Module B — Commercial Laws — cover beyond the NI Act?

Indian Contract Act 1872: Valid contract essentials, guarantee vs indemnity, bailment vs pledge, agency, capacity to contract (minors)
Transfer of Property Act 1882: Six types of mortgage, equitable mortgage, charge vs mortgage, lease vs licence
Limitation Act 1963: 3-year limitation for banking debts, acknowledgement of debt, effect of part payment
For the Negotiable Instruments Act (cheques, promissory notes, Section 138) — already covered in the BRBL SARFAESI & NI Act guide — this article completes the rest of Module B.

Why This Content Feels Familiar Once Named Correctly

Every guarantee letter you have taken, every mortgage document you have executed, every minor’s account you have opened with restrictions — you have been applying the Contract Act and Transfer of Property Act your entire banking career without necessarily naming the sections. This guide gives the formal vocabulary: which Act, which section, which legal distinction IIBF tests. The pattern across all three Acts covered here is the same — pairs of similar-sounding concepts (guarantee vs indemnity, bailment vs pledge, charge vs mortgage) that the exam tests by asking you to distinguish, not just define.

Indian Contract Act 1872

Essentials of a Valid Contract

Element	Requirement
Offer & Acceptance	Lawful offer met by lawful, unconditional acceptance
Free Consent	No coercion, undue influence, fraud, misrepresentation, or mistake
Lawful Consideration	Something of value exchanged; must not be illegal or against public policy
Capacity of Parties	Parties must be of sound mind, of legal age, and not disqualified by law
Lawful Object	Purpose of the agreement must not be illegal or opposed to public policy

Void, Voidable and Illegal Contracts

Type	Meaning	Banking Example
Void Agreement	Not enforceable by law from the start — no legal effect at all	A contract with a minor — void ab initio, not merely voidable
Voidable Contract	Enforceable, but one party has the option to rescind it (due to coercion, fraud, undue influence, or misrepresentation)	A guarantee obtained by concealing material facts — guarantor can avoid it
Illegal Agreement	Object or consideration is forbidden by law — void, and collateral transactions connected to it are also tainted	A loan agreement to finance an illegal activity

Exam trap: A contract with a minor is void ab initio (from the very beginning) — not voidable. This is a Privy Council-settled principle (Mohori Bibee v. Dharmodas Ghose) and one of the most frequently tested single facts in this section. A minor can never be held liable on a contract, even if they misrepresented their age.

Guarantee vs Indemnity

Feature	Contract of Guarantee (Sec 126)	Contract of Indemnity (Sec 124)
Parties	Three — Creditor, Principal Debtor, Surety	Two — Indemnifier and Indemnified
Nature of liability	Secondary — surety liable only if principal debtor defaults	Primary — indemnifier liable to make good the loss directly
Existing debt?	Yes — there is always an existing debt or duty being guaranteed	No — protects against a possible future loss, no pre-existing debt needed
Banking example	Bank guarantee for a loan taken by a third party	Bank’s letter of indemnity for a lost fixed deposit receipt

Continuing Guarantee — Revocation

A continuing guarantee (Sec 129) extends to a series of transactions, not just one — for example, a guarantee covering an overdraft account where the balance fluctuates daily. Key rules candidates must know:

Revocation by notice (Sec 130): A continuing guarantee can be revoked by the surety for future transactions by giving notice — but the surety remains liable for transactions already completed before the notice.
Revocation by death (Sec 131): Death of the surety revokes the guarantee for future transactions, in the absence of a contract to the contrary — the estate is not liable for fresh transactions after death, only for transactions up to that point.
Discharge of surety (Sec 133-139): A surety is discharged if the creditor varies the contract terms without the surety’s consent, releases the principal debtor, or does something inconsistent with the surety’s rights.

Bailment vs Pledge

Feature	Bailment (Sec 148)	Pledge (Sec 172)
Definition	Delivery of goods for a specific purpose, to be returned or disposed of per instructions once the purpose is accomplished	A special type of bailment — goods delivered as security for a debt or performance of a promise
Purpose	General — safekeeping, repair, transport, etc.	Specific — security for a loan/advance
Banking example	Safe custody of documents/valuables in a bank locker arrangement	Gold loan — gold ornaments pledged as security; stock hypothecation converted to pledge on default

Every pledge is a bailment, but not every bailment is a pledge — pledge is the narrower, security-specific category. This “pledge is a subset of bailment” relationship is a recurring single-mark question.

Agency — Creation and Termination

An agency relationship (Sec 182) exists when one person (the agent) is employed to act on behalf of another (the principal) in dealings with third parties. Banking relevance: a bank collecting a cheque on behalf of a customer acts as the customer’s agent.

Creation: By express agreement, by implication (conduct), by ratification (principal approves an unauthorised act after the fact), or by necessity (emergency situations).

Termination: By agreement, by revocation by the principal, by renunciation by the agent, by completion of the business, by death/insanity of either party, or by insolvency of the principal.

Transfer of Property Act 1882

Six Types of Mortgage

Type	Key Feature
Simple Mortgage	Mortgagor does not deliver possession; personally binds to repay; mortgagee’s remedy on default is to sue for sale of the property through court
Mortgage by Conditional Sale	Property ostensibly sold, but sale becomes void on repayment, or becomes absolute on default
Usufructuary Mortgage	Possession delivered to mortgagee, who retains it and takes rents/profits in lieu of interest/repayment — no personal liability for the mortgagor
English Mortgage	Mortgagor binds personally to repay on a fixed date and transfers the property absolutely to the mortgagee, subject to reconveyance on repayment
Mortgage by Deposit of Title Deeds (Equitable Mortgage)	Created by simply depositing title documents with the creditor (or their agent) with intent to create security — no registered deed required. The most common mortgage type in bank lending because it is fast and low-cost.
Anomalous Mortgage	Any mortgage that does not fall into the above five categories — a combination or variation of standard types

Why Equitable Mortgage dominates bank lending: It avoids stamp duty and registration costs associated with a registered mortgage deed, and can be created quickly at designated notified towns/cities by simply depositing original title deeds with the bank. This is the single most frequently tested mortgage type in BRBL.

Charge vs Mortgage

Feature	Mortgage	Charge
Created by	Act of parties — an express agreement transferring interest in specific immovable property	Act of parties or by operation of law (e.g., a statutory charge)
Transfer of interest	Yes — an actual interest in the property is transferred to the mortgagee	No — merely creates a right of payment out of a specific property, no transfer of interest
Personal liability	Can carry personal covenant to repay	No personal liability — remedy limited to the charged property

Lease vs Licence

Feature	Lease	Licence
Interest created	Transfer of an interest in the property (right to enjoy) for a term	Merely a personal permission to use the property — no interest transferred
Transferability	Generally transferable/heritable, subject to contract terms	Personal to the licensee — not transferable
Revocability	Cannot be revoked at will — governed by lease term and notice provisions	Generally revocable at the will of the grantor (subject to exceptions)

Limitation Act 1963

Rule	Detail
Limitation period for banking debts	3 years from the date the debt becomes due (or date of last acknowledgement/part payment) for filing a suit for recovery
Acknowledgement of debt (Sec 18)	A written acknowledgement of liability, signed by the debtor before the limitation period expires, restarts the 3-year clock from the date of acknowledgement
Part payment (Sec 19)	A part payment of principal or interest, made before the limitation period expires and evidenced in the debtor’s own handwriting or signed record, also restarts the limitation clock
Effect of expiry	The debt is not extinguished, but becomes time-barred — the creditor loses the remedy of court action, though the debtor’s moral/legal obligation to pay is not erased (a time-barred debt can still be voluntarily paid or set off)

Exam trap — NPA date is NOT the limitation date: An account becoming an NPA (per RBI’s 90-day overdue norm) is a separate concept from the debt becoming time-barred under the Limitation Act. A loan can be an NPA well within its 3-year limitation window, and conversely, banks must track the limitation date separately (typically via periodic acknowledgement letters/balance confirmation) to avoid losing the legal right to recover, even on an account not yet classified NPA or already NPA for years.

Master Reference — Module B (Beyond NI Act)

Item	Detail
Limitation period — banking debts	3 years
Contract with a minor	Void ab initio (not voidable)
Guarantee — parties	3 (Creditor, Principal Debtor, Surety)
Indemnity — parties	2 (Indemnifier, Indemnified)
Most common bank mortgage type	Equitable Mortgage (deposit of title deeds)
Total mortgage types under TP Act	6

Frequently Asked Questions

Why is a minor’s contract void, but a lunatic’s contract sometimes valid?

A minor completely lacks contractual capacity under the Contract Act, so any agreement with a minor is void from the start regardless of circumstances. A person of unsound mind, however, can enter a valid contract during a lucid interval — capacity is assessed at the moment the contract is made, not by a permanent label. This distinction matters for banking: a bank must never open an account or lend directly to a minor in their own name (guardian must act), but a customer with a history of mental illness can validly transact during a period when they are of sound mind.

If a bank varies the loan terms without informing the guarantor, what happens to the guarantee?

Under Section 133 of the Contract Act, any material variance in the terms of the contract between creditor and principal debtor, made without the surety’s consent, discharges the surety from liability for transactions after that variance. This is a strict rule — even a variance that appears to benefit the surety (e.g., extending time) can discharge them unless the guarantee document explicitly reserves the bank’s right to grant such extensions without fresh consent. Banks routinely include such reservation clauses in guarantee documents for exactly this reason.

Why do banks prefer Equitable Mortgage over a registered Simple Mortgage?

Cost and speed. A registered mortgage (Simple or English) requires a formal deed and registration, attracting significant stamp duty and registration fees, and takes longer to execute. An Equitable Mortgage is created merely by depositing original title deeds with the bank (or its authorised agent) at a notified town, with clear intent to create security — no deed, no registration, minimal cost. For high-volume retail and SME lending, this efficiency makes Equitable Mortgage the default choice; registered mortgages are reserved for cases requiring the stronger, more formally documented security.

Does an NPA classification stop the limitation clock from running?

No — NPA classification and limitation are entirely separate legal mechanisms. NPA status is an RBI prudential/accounting classification (90 days overdue) that affects provisioning and income recognition. The limitation period is a civil law concept under the Limitation Act that determines whether a court will entertain a recovery suit. A loan can remain a valid, recoverable debt (within limitation) for 3 years after the last acknowledgement or part payment, entirely independent of how long it has been classified NPA. Banks must obtain periodic balance confirmations or acknowledgements specifically to keep the limitation clock from expiring, separate from any NPA-related provisioning action.