CAIIB Retail Banking Case Studies: Solved Examples & Practice Questions (2026)

Retail banking case studies are the highest-scoring. And most feared — part of the CAIIB Retail Banking elective. In one cluster of linked questions.

The IIBF tests whether you can apply a scheme rule. Run an interest calculation, and read a product feature under exam pressure. Get the method right and you bank easy marks.

Get it wrong. A single misread caption costs you four to five questions in a row.

This 2026 guide walks you through the most important retail banking case studies for the CAIIB exam — fully solved, step by step. You will work through real-style cases on PMAY housing subsidies, credit card interest, Bharat QR and PMJJBY, learn a repeatable method to crack any caselet, and avoid the traps that quietly drain scores. Use it alongside our mock tests and you will walk into the hall calm and ready.

What Are Retail Banking Case Studies in CAIIB?

A case study (also called a caselet or comprehension cluster) gives you a short paragraph of context. A customer. A product.

Or a government scheme — followed by a set of linked multiple-choice questions. You read the situation once. Then answer four to seven questions that all draw on that same paragraph.

The CAIIB (Certified Associate of Indian Institute of Bankers) qualification from IIBF is the natural next step after JAIIB. It sharpens decision-making across credit, risk, treasury and retail banking. The Retail Banking and Wealth Management paper is a popular elective. And its case studies reward candidates who have actually understood the syllabus rather than merely memorised it.

The good news: if you have revised the chapters. These caselets are quick wins. The story changes. But the underlying rule — a subsidy slab. An interest formula, a transaction limit — stays exactly what you studied.

Why Retail Banking Case Studies Matter for Your Score

Case studies punch above their weight for three reasons:

• Clustered marks: one paragraph can unlock five or more questions. Crack the concept once and the marks compound.
• Higher difficulty weight: the IIBF increasingly favours application over recall. So caselets often decide who clears the cut-off.
• Transferable skill: the same comprehension-plus-calculation muscle helps in bank promotion exams. On the job.

In short. The candidate who practises caselets beats the candidate who only reads theory. Let us get into the actual cases.

Case Study 1: Housing Finance Under PMAY (Affordable Housing)

The "Housing for All" mission. Now delivered through Pradhan Mantri Awas Yojana (PMAY). Covers urban areas across States. Union Territories and cities. It rests on four delivery verticals:

1. In-situ slum redevelopment using land as a resource, with private participation.
2. Credit Linked Subsidy Scheme (CLSS). Affordable housing for weaker sections through an interest subsidy on home loans.
3. Affordable Housing in Partnership (AHP) with the public and private sectors.
4. Beneficiary-Led Construction (BLC) — subsidy for individual house construction or improvement.

The exam loves this scheme. Every vertical carries a specific central-assistance figure. Read each question carefully. The trap is mixing up which vertical the number belongs to.

Practice Questions — PMAY

1. The slum-redevelopment vertical offers an average central grant of how much per house?(a) Rs. 1 lakh   (b) Rs. 1.5 lakh   (c) Rs. 2.3 lakh   (d) Rs. 2.7 lakh
2. Under the Credit Linked Subsidy element. What interest subsidy is offered to EWS/LIG borrowers on home loans of up to a 15-year tenure?(a) 5.6%  . (b) 6.5%   (c) 5.8%   (d) 8.5%
3. For both EWS and LIG categories. What is the maximum subsidy payout per house under the Credit Linked Subsidy element?(a) Rs. 1 lakh   (b) Rs. 1.5 lakh   (c) Rs. 2.3 lakh   (d) Rs. 2.7 lakh
4. Under Affordable Housing in Partnership. How much central assistance is given per dwelling for the EWS category?(a) Rs. 1 lakh   (b) Rs. 1.5 lakh   (c) Rs. 2.3 lakh   (d) Rs. 2.7 lakh
5. Under Beneficiary-Led Individual House Construction or Improvement. How much central assistance is offered for EWS-category houses?(a) Rs. 1 lakh   (b) Rs. 1.5 lakh   (c) Rs. 2.3 lakh   (d) Rs. 2.7 lakh

Exam note: PMAY slabs. Interest-subsidy rates. The scheme's validity window have been revised over the years (including the move to PMAY-Urban 2.0). Treat the figures above as the classic CAIIB study-material values. And always confirm the current numbers on the latest official IIBF notification before your attempt.

Case Study 2: Credit Card Interest Calculation

This is the single most popular retail banking case study in the numerical section. And once you see the logic. It is genuinely easy marks.

The scenario: Mr. X holds an ABC Bank credit card with a spending limit of Rs. 2,00,000.

He spends Rs. 1,50,000 in July 2016. On the due date (10 August 2016) he pays Rs.

1,20,000 — only part of the outstanding amount. On 11 August 2016 he makes a fresh purchase of Rs. 70,000.

The bank charges interest at 2% per month.

Practice Questions — Credit Card

1. What is the minimum monthly payment on the credit card bill?(a) 3% of balance  . (b) 5% of balance   (c) 8% of balance   (d) 10% of balance
2. At 2% per month. What is the effective annual interest rate?(a) 24.52%  . (b) 26.82%   (c) 27.92%   (d) 28.64%
3. What is the daily interest charged from 11 August 2016 on the unpaid balance?(a) Rs. 60.50   (b) Rs. 65.75   (c) Rs. 70.10   (d) Rs. 75.25
4. What is the total interest charged on 10 September 2016?(a) Rs. 1,865   (b) Rs. 1,906   (c) Rs. 1,973   (d) Rs. 2,036
5. How much must Mr. X pay to clear all dues by 10 September 2016?(a) Rs. 30,000   (b) Rs. 70,000   (c) Rs. 1,00,000   (d) Rs. 1,01,973

Step-by-Step Solution

Q1 — (b): A typical minimum payment is 5% of the amount due.

Q2 — (b): Effective annual rate. Use the compounding formula:

Effective Rate = (1 + r)n − 1= (1 + 0.02)12 − 1= 1.26824 − 1 = 0.26824 = 26.82%

Q3 — (b): Daily interest. After paying Rs. 1,20,000, the carried-over balance is Rs.

30,000 (from the original Rs. 1,50,000), and a fresh Rs. 70,000 is added — so Rs.

1,00,000 attracts interest:

Daily interest = Outstanding × (12 / 365) × r= 1,00,000 × (12 / 365) × 0.02= 24,000 / 365 = Rs. 65.75

Q4 — (c): Total interest on 10 September 2016. Interest runs for the days the balance was outstanding. From 11 July 2016 to 10 August 2016 is 30 days:

Total interest = 30 days × Rs. 65.75 ≈ Rs. 1,973

Q5 — (d): Total payable. Add the carried balance, the new purchase, and the interest:

30,000 + 70,000 + 1,973 = Rs. 1,01,973

The key insight: a partial payment does not stop interest. The unpaid portion keeps accruing daily. And any fresh purchase loses the interest-free grace period the moment a balance is revolving. That is exactly the real-world trap the IIBF wants you to recognise.

Case Study 3: Bharat QR — Digital Payments

Bharat QR is an interoperable QR-code payment system. A QR code is a pattern of black squares on a white background that a camera reads to fetch payment information about the merchant it is linked to. It lets a customer scan. Pay a merchant without sharing card details physically.

Practice Questions — Bharat QR

1. Bharat QR is. Type of mobile payment system?(a) P2P (Person to Person)  . (b) P2M (Person to Merchant)  . (c) M2P   (d) M2M
2. Bharat QR is built on payment networks of: (i) NPCI. (ii) Visa. (iii) Mastercard.(a) (i) &. (ii) only  . (b) (i) &. (iii) only   (c) (ii) & (iii) only   (d) (i). (ii) & (iii)
3. What fees does a customer pay for using Bharat QR?(a) No additional fees  . (b) Depends on the bank  . (c) Depends on the app   (d) Depends on the amount
4. Can multiple bank cards be linked to one app?(a) No linking allowed  . (b) Multiple cards from different banks  . (c) Yes — multiple cards from the same bank  . (d) None of these
5. MPIN is the first factor of 2FA when logging in. The second factor can be: (i) MPIN. (ii) OTP. (iii) ATM PIN.(a) (i) or (ii)  . (b) (i) or (iii)  . (c) (ii) or (iii)   (d) (i) or (ii) or (iii)
6. What is the per-transaction limit?(a) Rs. 10,000   (b) Rs. 20,000   (c) Rs. 50,000   (d) Set at the bank's end
7. What is the maximum number of Bharat QR transactions per day?(a) No cap on number  . (b) No transaction limit   (c) No cap. But card daily limits apply   (d) Set at the bank's end

Why it matters: digital-payment questions test product features, not maths. Remember the pattern — Bharat QR is Person-to-Merchant. Built on NPCI + Visa + Mastercard. Carries no extra customer fee. And inherits the daily limits of the underlying card.

Case Study 4: PMJJBY — Social Security Insurance

Pradhan Mantri Jeevan Jyoti Bima Yojana (PMJJBY) is a government-backed term-life insurance scheme distributed through banks. It is a favourite caselet because the numbers — age band. Premium, cover and the premium split — are crisp and easy to test.

Practice Questions — PMJJBY

1. What is the eligible age range to enrol in PMJJBY?(a) 18–40  . (b) 18–50   (c) 18–60   (d) 18–70
2. What is the payable premium?(a) Rs. 12 per month   (b) Rs. 12 per annum   (c) Rs. 330 per week   (d) Rs. 330 per year
3. How much is payable on the death of a subscriber from any cause?(a) Rs. 1 lakh   (b) Rs. 2 lakh   (c) Rs. 3 lakh   (d) Rs. 5 lakh
4. What premium goes to LIC or the insurance company?(a) Rs. 330   (b) Rs. 289   (c) Rs. 30   (d) Rs. 11 (per member per year)
5. What premium is allocated to the agent / BC / Micro / corporate for reimbursement of expenses?(a) Rs. 330   (b) Rs. 289   (c) Rs. 30   (d) Rs. 11 (per member per year)
6. How much of the premium covers the participating bank's administrative costs?(a) Rs. 330   (b) Rs. 289   (c) Rs. 30   (d) Rs. 11 (per member per year)

Heads-up: PMJJBY premiums have been revised since launch. The classic study-material split is Rs. 330 = Rs.

289 (insurer) + Rs. 30 (BC/agent) + Rs. 11 (bank).

The headline premium has since been updated. So verify the current figure on the latest official IIBF notification before the exam.

Quick-Reference Table: The Four Case Studies

How to Solve Any Retail Banking Case Study: A 5-Step Method

Use this repeatable approach for every caselet you meet. In practice and in the real exam:

1. Read the scenario twice. First for the story. Second to underline every number, date and named product. These are your data points.
2. Identify the category. Is it a scheme (PMAY. PMJJBY). A numerical (credit card, EMI), or a product-feature set (Bharat QR, UPI)? This tells you whether to recall a fact or run a formula.
3. Map each question to one data point. Linked questions usually move in sequence — answer 3 often feeds answer 4. Solve in order.
4. Show the formula for numericals. Write (1 + r)n − 1 or the daily-interest line before plugging numbers. So you do not slip on arithmetic under time pressure.
5. Sanity-check the answer. Does the rupee figure or rate feel realistic? An effective rate far above 30% on a 2% monthly card should make you pause. Recompute.

Drill this method on timed sets. The more caselets you solve, the faster step 2 becomes automatic. Build the habit with our full bank of mock tests and topic-wise free guides.

Common Mistakes Candidates Make

Avoid these score-killers that trip up even well-prepared students:

• Reading the caption, not the question. The story sets context, but each question asks something specific. Answer what is asked.
• Assuming a partial payment stops interest. On a credit card. The unpaid balance keeps accruing daily. And new purchases lose the grace period.
• Mixing up monthly and annual rates. A 2% monthly rate is not 24% effective; compounding pushes it to about 26.82%.
• Memorising stale figures. Scheme amounts, premiums and limits are revised. Learn the structure. Then confirm current values on the latest official IIBF notification.
• Skipping the easy product questions. Bharat QR and PMJJBY feature questions are quick marks. Never leave them for last and run out of time.

How to Prepare for Retail Banking Case Studies

A focused study plan beats scattered reading. Here is a practical routine:

1. Lock the fundamentals first. Finish the Retail Banking syllabus chapters before touching caselets. You cannot apply what you have not learned.
2. Maintain a formula and scheme sheet. Keep effective-rate. EMI and daily-interest formulas on one page. Keep PMAY/PMJJBY/PMSBY parameters on another for fast revision.
3. Solve at least 5 caselets a day. Mix numerical. Scheme and product types so no category feels unfamiliar on exam day.
4. Take full-length timed tests. Simulate the clock so comprehension speed becomes second nature. Our mock tests mirror the real pattern.
5. Review every mistake. Note why you erred — misread. Wrong formula, or stale figure — and you will not repeat it.

Frequently Asked Questions

How many case studies appear in the CAIIB Retail Banking exam?

The exact count varies by attempt and is set by the IIBF. Caselets typically appear as comprehension clusters with several linked MCQs each. Always check the current pattern on the latest official IIBF notification. And practise enough sets that any number feels comfortable.

Are retail banking case studies harder than normal MCQs?

They feel harder because they combine reading with recall or calculation. But they reuse the same syllabus facts and formulas. So with practice they become predictable. High-scoring questions rather than surprises.

What is the formula for the effective annual interest rate?

Effective annual rate = (1 + r)n − 1. Where r is the periodic (e.g.. Monthly) rate and n is the number of periods in a year. For a 2% monthly card, that is (1.02)12 − 1 ≈ 26.82%.

Do I need to memorise exact PMAY and PMJJBY figures?

Memorise the structure. Which vertical or component carries which amount — because that logic rarely changes. The exact rupee figures and premiums are revised over time. So confirm the latest values on the official IIBF notification before your attempt.

Where can I practise more retail banking case studies?

Practise on the Learning Sessions platform. Our mock tests cover scheme-based, numerical and product-feature caselets in the exact CAIIB pattern, and our free guides break down each topic in plain language.

Final Word: Turn Case Studies Into Your Strength

Retail banking case studies are not a hurdle — they are an opportunity. Each caselet bundles several marks behind a single concept you already know. Master the four high-yield areas in this guide.

Apply the five-step method. Sidestep the common mistakes. And you convert the scariest section of the paper into your most reliable scorer.

Revise the structure. Drill timed sets. And verify every figure against the latest official IIBF notification.

Do that consistently. Clearing the CAIIB Retail Banking exam stops being a hope. Becomes a plan.

You have got this — now go practise.

Related Guides

For more on retail banking case studies. See the official IIBF circulars. Our chapter-wise free notes on iibf.store.

For more on “retail banking case studies”, explore our free mock tests and chapter notes on iibf.store.

Bookmark this page — we keep our “retail banking case studies” guidance current as IIBF revises its rules.

Still researching “retail banking case studies”? Always confirm the latest position on the official IIBF site first.

Practise exam-style questions on “retail banking case studies” free on iibf.store to lock in the concept.