Banker's Special Relationship: Mandate, POA & Banker's Lien (JAIIB PPB 2026)

Ever handed someone the keys to your bank account while you travelled. Fell ill, or were simply too busy? That single act sits at the centre of the banker's special relationship &mdash.

One of the most heavily tested areas in JAIIB PPB Unit 7. Banks let an account holder authorise another person to operate the account through a Mandate or a Power of Attorney (POA). And they hold powerful rights of their own through the banker's lien.

The right of set-off and the garnishee order.

This 2026 guide breaks down every one of these legal tools in plain English. Whether you are revising for JAIIB. Working at a branch counter.

Or just curious how someone can legally run your account. You will leave knowing exactly how each instrument works. When it ends, and how examiners frame the questions.

Before we dive in, watch this video for a complete breakdown:

What Is the Banker's Special Relationship?

The relationship between a bank and its customer is. At its base, that of debtor and creditor. When you deposit money.

The bank becomes your debtor and owes you the balance on demand. But layered on top of this primary relationship is a set of special obligations. Rights that apply in particular situations.

The banker's special relationship covers two broad sides:

• Customer-side authorisations &mdash. Tools a customer uses to let someone else operate the account. Namely the Mandate and the Power of Attorney.
• Bank-side rights — legal protections the bank enjoys. Namely the right of general lien. The right of set-off and the obligation to honour a garnishee order.

Understanding both sides is essential. Because real branch scenarios &mdash. And JAIIB case-study questions — usually mix them together.

Mandate: The Simplest Authorisation

What Is a Mandate?

A Mandate is a written authorisation in. An account holder (call them Person A) permits another person (Person B) to operate the account for specified. Usually limited, transactions. Among all the tools in the banker's special relationship. The Mandate is the simplest and the most common in everyday banking.

Key Features of a Mandate

• It is a temporary arrangement carrying limited powers.
• The account holder informs the bank in writing about the authorisation.
• It terminates automatically on the death. Insanity or insolvency of the account holder.
• Generally only individuals issue Mandates. Large institutions usually act through board resolutions or formal POAs instead.
• It can be revoked easily by the customer, without legal formalities.

Mandates suit business transactions. Short delegations and pure convenience — for example. When a customer is travelling.

Recovering from illness, or temporarily unable to visit the branch. Because the authority is narrow. Banks normally insist on the customer's clear written instructions before honouring any Mandate-based transaction.

Power of Attorney (POA): A Broader Legal Authority

What Is a Power of Attorney?

A Power of Attorney (POA) is a formal legal document by. A person &mdash. The Principal or Donor &mdash.

Gives another person &mdash. The Agent or Donee &mdash. Authority to act on their behalf in financial.

Legal or property matters. Compared with a Mandate. A POA carries stronger legal backing and usually requires proper stamping and.

Often, notarisation to be enforceable.

Types of Power of Attorney

• General Power of Attorney (GPA): grants broad powers. Letting the agent act across multiple legal, financial or property transactions.
• Special (or Specific) Power of Attorney (SPA): grants power for one defined purpose &mdash. For example. Selling a particular property or operating a single bank account.

POAs feature heavily in legal proceedings, real-estate deals and corporate management. They are the preferred choice when long-term or wide-ranging authority is needed. A bank receiving a POA must read the document carefully. Act strictly within the powers granted &mdash. Acting beyond them exposes the bank to liability.

Mandate vs Power of Attorney: Comparison Table

This is the comparison examiners love to test. Memorise the rows below. You can answer most objective questions on the topic.

Knowing when to use each tool protects both the bank. The customer. A Mandate may be enough for a short business trip. While a POA fits situations where the holder cannot operate the account for a long stretch.

Banker's Lien: The Bank's Implied Pledge

A banker's lien is the right of a bank to retain a customer's securities or property that lawfully come into its possession until the customer clears any outstanding dues. It is one of the strongest protections in the banker's special relationship. Turning the bank into a secured creditor.

Two points carry the most exam weight:

• A banker enjoys a general lien, not merely a particular lien. This means the lien covers the general balance of account. Not just one specific transaction.
• The banker's lien is widely treated as an implied pledge. Which gives the bank the additional power to sell the securities after reasonable notice. Rather than only hold them passively.

Banks commonly exercise lien over items such as pledged securities. Instruments held for collection. However.

The lien does not automatically extend to articles left in safe custody or to the contents of a safe-deposit locker. Because in those cases the bank acts as a bailee or lessor. Not as a lender holding security.

For exact statutory wording and any exceptions. Always confirm on the latest official IIBF notification and current courseware.

Right of Set-Off and Garnishee Order

Two further bank-side rights round out PPB Unit 7. They look similar at first glance but work very differently.

Right of Set-Off

The right of set-off is the bank's authority to combine two or more accounts of the same customer. Adjust a credit balance in one account against a debit balance in another. For instance.

A bank may set off a credit in a savings account against an overdue amount in the same customer's loan account. Provided certain conditions are met (such as the debt being due. The accounts being in the same capacity).

Garnishee Order

A garnishee order is a court order that attaches money a bank owes to a customer (the judgment debtor). Directs the bank not to pay it out. The bank.

On receiving the order. Becomes the garnishee and must freeze the relevant balance. Distinguishing the bank's own right of set-off from a court-imposed garnishee order is a classic JAIIB question.

How Banks Handle These Authorisations in Practice

On the ground, branches follow a careful, documented process. A practical workflow looks like this:

1. Receive written instructions. The customer submits the Mandate or POA in writing, signed and dated.
2. Verify identity and genuineness. Staff confirm the principal's signature and. For a POA, examine stamping and the exact powers granted.
3. Record the authorisation. The authorised signatory's details and specimen signature are registered against the account.
4. Operate strictly within scope. The agent may transact only within the limits stated — nothing more.
5. Stop on any trigger event. On notice of death. Insanity. Insolvency or revocation, the bank immediately halts further operations under that authority.

A Practical Study Plan for PPB Unit 7

To convert this topic into guaranteed marks. Study it in layers rather than reading passively.

• Day 1 — Definitions. Write one-line definitions of Mandate. POA, lien, set-off and garnishee order from memory.
• Day 2 — Differences. Reproduce the Mandate-vs-POA table above without looking. Add the lien-vs-pledge distinction.
• Day 3 — Triggers. Drill the termination events (death, insanity, insolvency) until they are automatic.
• Day 4 — Application. Solve case-based scenarios and time yourself with mock tests.
• Day 5 — Revision. Skim related topics — customer types, negotiable instruments and clearing — via our free guides.

Active recall plus repeated mock tests beats re-reading notes every time.

Common Mistakes Aspirants Make

• Confusing Mandate with POA. Remember: stamping and broader powers signal a POA.
• Forgetting the termination triggers. Both authorisations end on death. Insanity or insolvency — do not assume they continue.
• Treating lien as a particular lien. A banker's lien is a general lien. Behaves like an implied pledge.
• Mixing up set-off and garnishee order. Set-off is the bank's own right. A garnishee order comes from a court.
• Assuming lien covers lockers. Safe-custody articles and locker contents are generally outside the lien.
• Quoting outdated figures. When unsure of any statutory detail. Confirm on the latest official IIBF notification.

Why JAIIB Aspirants Must Master These Concepts

PPB Unit 7 is a dependable scoring area. Questions on Mandates. POA.

Banker's lien. Set-off. Garnishee orders appear again.

Again. These tools sit at the heart of the banker's special relationship. Lock in the definitions.

The differences. And the termination conditions. And you can tackle both straight objective questions.

Trickier case-based ones with confidence.

Frequently Asked Questions (FAQ)

What is the main difference between a Mandate and a Power of Attorney?

A Mandate is a simple. Short-term written authorisation with limited powers and no stamping requirement. A Power of Attorney is a formal. Stamped legal document granting broader, longer-lasting authority and is harder to revoke.

Does a Mandate or POA end when the account holder dies?

Yes. Both a Mandate and a POA terminate automatically on the death. Insanity or insolvency of the principal. The bank must stop honouring transactions under that authority as soon as it receives notice.

Is a banker's lien a general lien or a particular lien?

A banker's lien is a general lien over the general balance of account. And it is treated as an implied pledge &mdash. Meaning the bank can sell the retained securities after reasonable notice. Subject to the relevant terms.

What is the difference between right of set-off and a garnishee order?

Right of set-off is the bank's own right to combine a customer's accounts. Adjust balances. A garnishee order is a court order that freezes the customer's balance. Directs the bank not to pay it out.

How important is PPB Unit 7 for the JAIIB exam?

Very. The banker's special relationship is a high-frequency, high-scoring topic. Mastering Mandate, POA, lien, set-off and garnishee orders gives you reliable marks. For exact weightage, confirm on the latest official IIBF notification.

Conclusion: Turn These Legal Tools Into Marks

The banker's special relationship is not dry theory &mdash. It is the legal backbone of everyday banking. Mandates and Power of Attorney let customers delegate safely.

While the banker's lien. Right of set-off. Garnishee order protect the bank and the financial system.

Understand all five. And you protect the institution. Serve the customer.

And walk into your JAIIB PPB exam ready to score.

Now reinforce it: attempt a few mock tests on PPB, then revise the linked units below. Consistent practice is what turns understanding into a confident pass.

Related Guides

For more on banker's special relationship. See the official IIBF circulars. Our chapter-wise free notes on iibf.store.