CAIIB ABM Credit Management — DSCR, MPBF & Working Capital Appraisal Complete Guide

Last updated by BankersClub on July 7, 2026

Quick Answer — ABM Module C

What are the key credit management formulas in CAIIB ABM?

MPBF Method I (Tandon): 75% × (CA − Current Liabilities excl. bank borrowings)
MPBF Method II (Tandon): (75% × CA) − Current Liabilities excl. bank borrowings — lower bank finance, RBI preferred
Nayak Committee (MSME): 20% of projected annual sales; borrower margin = 5% of sales
DSCR: (PAT + Depreciation + Interest on TL) ÷ (TL Repayment + Interest on TL) — acceptable ≥ 1.50
Drawing Power: Eligible Stock + Eligible Debtors − Creditors (subject to sanctioned limit)

Why Module C Dominates ABM Exam Marks

Module C — Credit Management — is the most branch-relevant section of ABM and consistently carries the highest weightage in CAIIB exams. Unlike statistics (Module A) which tests formula application, Module C tests your ability to read a financial statement, appraise a loan, and calculate exactly what a bank can lend. Officers who have processed CC or term loan proposals have an edge here — the calculations you do in the exam mirror real appraisal sheets.

This guide covers every tested calculation type with full worked examples using the same numbers throughout — so you can see how MPBF, DSCR, and Drawing Power interact for a single borrower.

Module C — What Gets Tested

✓ MPBF — Method I & II (Tandon Committee)

✓ Nayak Committee method (MSME)

✓ DSCR calculation and interpretation

✓ Drawing Power on CC accounts

✓ NPA classification and provisioning norms

✓ Credit ratios (Current, DER, TOL/TNW)

Working Capital Appraisal — The Three Methods

Banks assess how much working capital to lend using one of three methods. The Tandon Committee (1975, RBI) introduced Methods I and II for medium and large borrowers. The Nayak Committee (1992, RBI) simplified the calculation for MSME and SSI units. CAIIB tests all three — often in the same question.

The Common Borrower — Data for All Examples

Balance Sheet Item	Amount (₹ Lakhs)
Current Assets (CA)
Raw Materials	20
Work-in-Progress	10
Finished Goods	30
Sundry Debtors (within 90 days)	20
Total Current Assets (CA)	80
Current Liabilities excl. Bank Borrowings (CL*)
Sundry Creditors	15
Other Current Liabilities	10
Total CL* (excl. bank borrowings)	25
Projected Annual Sales (Turnover)	200

Tandon Committee — Method I

Method I Formula

MPBF = 75% × (CA − CL*)

Where: Working Capital Gap = CA − CL* (current liabilities excluding bank borrowings)
Bank finances 75% of the gap; borrower brings in minimum 25% of the gap as Net Working Capital (NWC/margin)

Method I — Worked Example

Working Capital Gap = CA − CL* = 80 − 25 = ₹55 lakhs

MPBF (Method I) = 75% × 55 = ₹41.25 lakhs

Borrower’s minimum NWC contribution = 25% × 55 = ₹13.75 lakhs

Tandon Committee — Method II (RBI Preferred)

Method II Formula

MPBF = (75% × CA) − CL*

Borrower must maintain minimum NWC = 25% of CA (not just 25% of the gap).
Method II always gives a lower MPBF than Method I — the borrower contributes more from own funds. RBI mandated Method II as the standard for credit limits above ₹10 crore.

Method II — Worked Example

75% of CA = 0.75 × 80 = ₹60 lakhs

MPBF (Method II) = 60 − 25 = ₹35 lakhs

Borrower’s minimum NWC contribution = 25% × CA = 0.25 × 80 = ₹20 lakhs

Method I vs Method II — Side-by-Side Comparison

Item	Method I	Method II
Bank Finance (MPBF)	₹41.25 L	₹35.00 L
Borrower’s NWC (Margin)	₹13.75 L	₹20.00 L
Who gets more bank funding?	Borrower ✓	Bank safer ✓
RBI stance	Earlier phase	RBI preferred ★

Method III (rarely tested): additionally excludes “Core Current Assets” — not required for most CAIIB candidates.

Nayak Committee Method — For MSME & SSI Units

Introduced in 1992 for small borrowers where preparing detailed balance sheets is impractical. The limit is calculated purely on projected annual sales — no need to classify individual current assets.

Nayak Committee Formula

MPBF = 20% of Projected Annual Sales (Turnover)

Total Working Capital Needed = 25% of sales
Bank provides 20%; borrower contributes minimum 5% as own NWC.
Applicable for: SSI, micro enterprises, MSME units with credit limits up to RBI threshold.

Nayak Method — Worked Example

Projected Sales = ₹200 lakhs

MPBF (Nayak) = 20% × 200 = ₹40 lakhs

Borrower’s own contribution = 5% × 200 = ₹10 lakhs

Total WC requirement = 25% × 200 = ₹50 lakhs

Three-Method Summary — Same Borrower

Method	MPBF (Bank Finance)	Borrower Margin
Tandon Method I	₹41.25 lakhs	₹13.75 lakhs (25% of gap)
Tandon Method II ★	₹35.00 lakhs	₹20.00 lakhs (25% of CA)
Nayak Committee (MSME)	₹40.00 lakhs	₹10.00 lakhs (5% of sales)

DSCR — Debt Service Coverage Ratio

DSCR measures a borrower’s ability to service (repay) a term loan from operating cash flows. It answers the question every credit officer asks: Can this business generate enough money to pay both the interest and the principal on time?

DSCR Formula — Memorise This Exactly

DSCR = (Net Profit After Tax + Depreciation + Interest on TL) ÷ (Annual TL Repayment + Interest on TL)

Numerator = Cash Profit + Interest on TL (all cash available for debt service)
Denominator = Total Debt Service obligation for the year
Acceptable DSCR: ≥ 1.50 (RBI/bank policy) | Preferred DSCR: ≥ 2.00
DSCR < 1.0: Business cannot cover its debt — automatic rejection

Note: Depreciation is added back to net profit because it is a non-cash charge — the money was never actually paid out, so it is available to service debt. Interest on the term loan appears on both sides because it’s both an expense (reduces PAT) and a component of what must be repaid.

DSCR — Full Worked Example (3-Year Term Loan Project)

A manufacturer has borrowed ₹60 lakhs as a term loan at 12% p.a. Repayment: ₹15 lakhs per year over 4 years.

Particulars	Year 1	Year 2	Year 3
Numerator (Cash Available for Debt Service)
Net Profit After Tax (₹ L)	14.00	18.00	22.00
Add: Depreciation (₹ L)	5.00	5.00	5.00
Add: Interest on TL (₹ L)*	6.60	4.80	3.00
Total Numerator (A)	25.60	27.80	30.00
Denominator (Debt Service Obligation)
Annual TL Repayment (₹ L)	15.00	15.00	15.00
Interest on TL (₹ L)*	6.60	4.80	3.00
Total Denominator (B)	21.60	19.80	18.00
DSCR (A ÷ B)	1.19 ⚠	1.40 ⚠	1.67 ✓

*Interest on TL: Year 1 = 12% × ₹55L outstanding (after Y1 repayment of ₹5L mid-year); simplified as ₹55L × 12% ≈ 6.60. Year 2: ₹40L × 12% = 4.80. Year 3: ₹25L × 12% = 3.00 (approximate straight-line for illustration)

Reading the DSCR — What the Examiner Wants

• DSCR < 1.0: Cash flow negative — cannot repay. Automatic decline.

• 1.0 – 1.49: Marginal — tight cash flows, any shock creates default. Bank will ask for additional collateral or promoter guarantees.

• ≥ 1.50: Acceptable — RBI/IBA standard minimum.

• ≥ 2.00: Comfortable — strong coverage. Bank may offer concessions on margin.

Average DSCR for the project above = (25.60+27.80+30.00) ÷ (21.60+19.80+18.00) = 83.40 ÷ 59.40 = 1.40 — bank would likely ask for improvement before sanction.

Drawing Power (DP) on Cash Credit Accounts

Drawing Power is the maximum amount a borrower can draw from a Cash Credit (CC) account at any given time, calculated from the latest stock/debtor statements. DP is recalculated monthly (or as per bank policy) — it can be lower than the sanctioned CC limit but never higher.

Drawing Power Formula

DP = (Eligible Stock + Eligible Debtors) − Creditors
Actual DP = lower of (Calculated DP) or (Sanctioned CC Limit)

Eligible Stock = Stock value (cost or market, whichever lower) × (1 − Margin %)
Eligible Debtors = Debtors within stipulated period (usually 90 days) × (1 − Margin %)
Debtors older than stipulated period: NOT eligible — excluded entirely
Margin: Set by bank at sanction (typically 25–40% on stock, 25–50% on book debts)

Drawing Power — Full Worked Example

The same borrower submits monthly stock statement. Sanctioned CC limit: ₹55 lakhs. Margin: 25% on stock and debtors.

Item	Value (₹ L)	Eligible Amount
Stock at cost	60.00	60 × 75% = 45.00
Debtors within 90 days	40.00	40 × 75% = 30.00
Debtors beyond 90 days	8.00	NIL (excluded)
Less: Creditors	12.00	(12.00)
Calculated Drawing Power		45+30−12 = ₹63 L
Sanctioned CC Limit		₹55 L
Actual Drawing Power (lower)		₹55 lakhs ✓

Interpretation: Stock and debtors are healthy (calculated DP ₹63L > limit ₹55L), so the borrower can draw the full sanctioned limit. Had calculated DP been ₹48L, the borrower could only draw ₹48L — the account would be marked “drawing power shortfall.”

NPA Classification & Provisioning Norms

An account becomes a Non-Performing Asset (NPA) when interest or principal remains overdue for more than 90 days (for term loans) or when the CC account is out-of-order for 90 days. Once classified as NPA, banks must make provisions — set aside funds from profits — based on how long the account has been NPA.

NPA Classification & Provisioning (RBI Norms)

Category	Period as NPA	Secured Portion	Unsecured Portion
Sub-Standard	Up to 12 months	15%	25%
Doubtful — D1	12–24 months	25%	100%
Doubtful — D2	24–36 months	40%	100%
Doubtful — D3	Beyond 36 months	100%	100%
Loss Asset	Identified as loss	100%	100%

Note: Standard (performing) assets require 0.25–1% provision depending on sector. Agricultural/MSME sub-standard: additional provisions may apply per RBI circular.

NPA Provisioning — Worked Example

Loan outstanding: ₹50 lakhs | Security value: ₹30 lakhs | NPA for 28 months → Doubtful D2

Secured portion = ₹30L → Provision = 40% × 30 = ₹12 lakhs

Unsecured portion = 50 − 30 = ₹20L → Provision = 100% × 20 = ₹20 lakhs

Total provision required = ₹32 lakhs

Key Credit Ratios — Quick Reference

Ratio	Formula	Benchmark
Current Ratio	CA ÷ CL	≥ 1.33 (WC accounts)
Debt-Equity Ratio (DER)	Total Debt ÷ Equity (TNW)	≤ 2:1 (industry varies)
TOL/TNW	Total Outside Liabilities ÷ Tangible Net Worth	≤ 4:1
DSCR	(PAT + Dep + Int on TL) ÷ (Repayment + Int on TL)	≥ 1.50
Asset Coverage Ratio	Net Assets ÷ Debt	≥ 1.00
Net Working Capital	CA − CL (all liabilities incl. bank)	Positive; ≥ 25% of CA (Tandon)

ABM Module C — Formula Reference Table

All Credit Management Formulas at a Glance

Formula	Expression	Key Note
Working Capital Limits
MPBF — Method I	0.75 × (CA − CL*)	75% of working capital gap
MPBF — Method II ★	(0.75 × CA) − CL*	RBI preferred; lower bank finance
Nayak Method (MSME)	20% of Projected Sales	Borrower margin = 5% of sales
Term Loan Appraisal
DSCR	(PAT + Dep + Int_TL) ÷ (Repayment + Int_TL)	Minimum 1.50; preferred 2.00
Break-even DSCR Profit	PAT = (1.5 × Denominator) − Dep − Int_TL	Minimum PAT for acceptable DSCR
CC Account Management
Drawing Power	(Elig. Stock + Elig. Debtors) − Creditors	Actual DP ≤ Sanctioned limit
Eligible Stock/Debtors	Value × (1 − Margin %)	Old debtors excluded entirely
NPA Provisioning
Sub-standard provision	15% × Secured + 25% × Unsecured	NPA up to 12 months
Doubtful D1 (12–24M)	25% × Secured + 100% × Unsecured
Doubtful D2 (24–36M)	40% × Secured + 100% × Unsecured
Doubtful D3 / Loss	100% × (Secured + Unsecured)	Full write-off equivalent

Common Exam Mistakes to Avoid

5 Mistakes That Cost Marks in Module C

1. Forgetting to add back depreciation in DSCR numerator
Cash flow ≠ net profit. Depreciation is a non-cash charge. PAT alone understates available cash for debt service.

2. Including bank borrowings in CL* for MPBF
CL* = current liabilities excluding bank borrowings. Including them double-counts the bank’s own finance and inflates MPBF.

3. Taking calculated DP as actual DP when it exceeds the sanctioned limit
Actual DP = lower of (calculated DP, sanctioned limit). You cannot draw more than the limit regardless of stock levels.

4. Using 15% provisioning for all NPA
15% is only for sub-standard secured. Doubtful and loss assets have different rates — memorise the full table.

5. Confusing Nayak: 20% bank, 5% borrower — not the other way
Bank provides 20%; borrower brings in 5% as own margin. Total WC = 25%. Students often invert this.

Frequently Asked Questions

What is the difference between Method I and Method II of Tandon Committee?

Method I: Bank finances 75% of the working capital gap (CA minus current liabilities excluding bank borrowings). Borrower contributes 25% of the gap. Method II: Bank finances 75% of total current assets minus all current liabilities (excl. bank borrowings). Borrower must maintain at least 25% of total CA as own NWC. Method II always results in lower bank finance and higher borrower margin — it is the RBI-preferred method for limits above ₹10 crore.

Why is a DSCR of 1.40 not acceptable even though it is above 1.0?

A DSCR of 1.0 means the business just barely covers its debt. Any adverse event — delayed receivables, cost overruns, revenue dip — pushes coverage below 1.0 and creates default. Banks require DSCR ≥ 1.50 to ensure a 50% cushion over minimum repayment obligations. Below 1.50, the bank typically insists on additional collateral, promoter guarantees, or restructuring of repayment terms before sanctioning.

Can Drawing Power exceed the sanctioned CC limit?

No. Actual drawing power is always the lower of (a) the calculated drawing power based on current stock and debtor statements, and (b) the sanctioned CC limit. If calculated DP is ₹70 lakhs but the sanctioned limit is ₹55 lakhs, the borrower can draw at most ₹55 lakhs. Conversely, if calculated DP falls to ₹40 lakhs, the account is restricted to ₹40 lakhs — the sanctioned limit becomes irrelevant until DP recovers.

When does a loan account become NPA and how does the classification progress?

An account becomes NPA when interest or principal is overdue for more than 90 days (term loans) or the CC account remains out-of-order for 90 days. On day 91, it is classified as Sub-Standard. After 12 months as NPA → Doubtful D1. After 24 months → D2. After 36 months → D3. Loss assets are those identified by the bank, auditors, or RBI as unrecoverable even if the legal process is ongoing.

Which MPBF method applies to MSME borrowers — Tandon or Nayak?

The Nayak Committee method (20% of projected sales) applies to SSI and MSME borrowers with working capital limits up to the threshold specified by RBI (currently ₹5 crore for micro/small enterprises in most schemes). For larger MSME or corporate borrowers, Tandon Method II applies. In CAIIB questions, the category of the borrower (SSI/MSME vs. medium/large enterprise) is the key indicator — always read the question stem carefully before choosing the method.