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16. Client diligence and suitability

Underwriting tells you whether to lend. Client diligence tells you whom you are lending to and what you should know about them beyond the credit decision. Suitability tells you whether the product you’re offering is right for that borrower.

These three are interlinked. A borrower may pass underwriting (capacity to repay) but fail diligence (unverifiable address, hostile promoter litigation, industry under regulatory action) or fail suitability (a short-tenure WC line offered to a borrower whose cash-flow cycle is 120 days).

The pages in this section are a cross-cutting playbook for the diligence and suitability work that runs alongside (and partly inside) the underwriting engine. They cover what to check, when, how, and what evidence to retain.

PageCovers
16.1 Pre-application diligenceSoft checks before borrower invests time; pre-qualifies fit
16.2 Borrower-type-specific protocolsProprietor, partnership, LLP, Pvt Ltd, public, HUF, trust, society — what each entity type requires
16.3 Promoter and BO background diligenceBeyond bureau — litigation, social, professional history, BO graph completion
16.4 Industry-specific compliance diligenceNIC-code-driven checks: PCB, factories, FSSAI, drug licence, telecom, finance, etc.
16.5 Customer and supplier verificationVerifying claimed counter-parties; cross-checking with GST / bank data
16.6 Physical verification protocolsField-FI standards beyond the basics — manufacturing, retail, services-specific
16.7 Continuous monitoring and ongoing diligenceWhat to re-check post-disbursement and on what cadence; behavioural triggers
16.8 Suitability assessmentMatching product to borrower; rules for declining a mismatch
16.9 Recovery-readiness from underwritingWhat to capture at sanction that helps recovery later if the loan turns bad

Underwriting is decision-tight: rule passes / fails, scorecard contributes / doesn’t, decision is APPROVE / DECLINE / REFER. Diligence is knowledge-broad: facts collected and retained that may not bear on the immediate decision but matter operationally, for monitoring, for recovery, for compliance audit.

The two collaborate. Many diligence items feed underwriting rules (e.g., promoter litigation flag may be a soft-decline rule). But the diligence file is a fuller record than the decision_run trace — it captures the lender’s complete view of the borrower, not just the bits that drove the decision.

FunctionOwnerCadence
Pre-applicationSales / channelAt lead stage
Entity / promoter / BO verificationKYC / KYB opsAt application + periodic
Promoter background (beyond bureau)Risk / complianceAt application; periodic
Industry complianceRisk / creditAt application; renewal
Customer / supplier verificationCredit analystAt application
Physical verificationField operationsAt application; periodic; on EWS
Continuous monitoringRisk / opsDaily / weekly / per signal
Suitability checkCreditAt application
Recovery readiness captureCredit + opsAt sanction

Every diligence item belongs in the borrower’s diligence file, accessible per loan / per borrower, retained per record-retention policy. Internal audit periodically samples diligence files for completeness.

For thin-file borrowers (6.14 onwards), diligence is heavier — references mandatory, field visit mandatory, customer / supplier verification deeper. The diligence pages here describe the standard protocol; thin-file underwriting adds intensity on top.