I. Types of Expert Evidence in Banking

II. Law Governing Expert Evidence

India – Bharatiya Sakshya Adhiniyam (BSA) 2023 (earlier Indian Evidence Act Sec 45-51):

• Sec 39 BSA (Old Sec 45): Opinion of expert is relevant when court has to form opinion on science, art, foreign law, handwriting, etc. Banking practice = art/science.
• Sec 40 (Old Sec 46): Facts supporting expert opinion relevant.
• Sec 41 (Old Sec 47A): Electronic evidence expert relevant.

Procedure:

• Expert must be examined as witness – cannot just file report (Sec 39 BSA requires oral evidence)
• Report is not substantive evidence – only corroborative – Must be proved by expert in court – State of H.P. v Jai Lal – AIR 1999 SC 3318
• Court can appoint court expert under Sec 39(2) BSA / Order 26 CPC – Commissioner

UK/EU – Different:

• CPR Part 35 – UK: Single Joint Expert common in banking cases to save costs
• EU Banking Union: ECB/SRB rely on independent expert (Deloitte for Popular) – courts give deference to expert unless manifest error – Algebris v SRB

III. Leading Case Laws – Expert Evidence Decides Case

A. INDIA – BANKING NEGLIGENCE – NEED EXPERT

1. State Bank of India v. Shyama Devi – AIR 1978 SC 1263 – The Classic on Banking Standard of Care

• Facts: Customer deposited money with bank clerk, clerk misappropriated, no entry in ledger.
• Trial court relied on lay evidence – held bank liable.
• Supreme Court: Bank's standard of care must be judged by expert banking practice, not common man. Bank proved through expert (ex-banker) that procedure required pay-in-slip + cashier stamp – customer did not follow. Bank NOT liable.
• Ratio: In banking negligence cases, expert evidence on banking custom is essential – judge cannot assume.

2. Pradeep Kumar v. State Bank of India – NCDRC – 2020 – Need for Forensic Expert in Fraud

• Customer claimed forged cheque debited. Bank produced signature verification by internal officer.
• NCDRC: Internal officer not independent expert. Must produce handwriting expert under Sec 45 Evidence Act + forensic lab report. Bank failed – liable to refund Rs 18 lakhs.

3. ICICI Bank Ltd v. Maharaj Krishan Datta – Delhi High Court – 2011 – Credit Appraisal Expert

• Bank sued borrower for Rs 5 Cr default. Borrower argued loan appraisal faulty, evergreening.
• Delhi HC: Appointed court expert – former ED of RBI – to examine appraisal file. Expert found bank violated own credit policy (no cash flow analysis). Suit dismissed – bank negligent, cannot recover.
• Ratio: Court can appoint independent banking expert under Order 26 CPC when credit appraisal is issue.

4. Nirav Modi – PNB LoU Fraud – 2018 – Expert Evidence on SWIFT- CBS Delinking

• CBI produced expert – Ex-CTO of PNB + CERT-In auditor – to prove that delinking SWIFT from CBS was gross negligence, not mere error.
• Special CBI Court accepted: Expert explained that any banker of ordinary prudence knows SWIFT must be integrated – PNB's failure = criminal negligence under Sec 46A Banking Regulation Act.

B. VALUATION – MOST IMPORTANT IN BANKING UNION & NPA

5. Banco Popular – Valuation Expert – T-481/17 Algebris v SRB & ECB – EU General Court – 1 June 2022 – The Leading Case on Valuation Expert

Facts: SRB resolution based on Deloitte Valuation 2 – range -€2bn to -€8.2bn. Shareholders challenged valuation as manifestly erroneous, relied on their own expert – Duff & Phelps saying Popular worth +€1bn.

GC Holding – 4 Principles on Expert Evidence in Banking:

(i) Deference: Valuation is complex economic assessment – court reviews only manifest error, not merits. Expert discretion.

(ii) Independent Expert Presumption: Deloitte appointed under Art 20 SRMR as independent expert – presumed credible unless bias proved. Challenger's expert (paid by shareholder) has less weight.

(iii) Methodology Not Result: Court checks if expert used accepted valuation methodology (DCF, market multiples, asset quality), not whether valuation figure correct.

(iv) Ex-post Hindsight Not Allowed: Valuation must be judged based on information available at resolution date (6 June 2017), not later recovery of Santander.

Result: GC upheld Deloitte valuation, rejected Duff & Phelps. Appeal C-934/22 pending.

6. Jatin Das v. Oriental Bank of Commerce – Supreme Court – 2020 – NPA Sale to ARC – Valuation Expert

• OBC sold NPA to Edelweiss ARC at 40% haircut. Borrower challenged sale price as undervalued, produced own valuer saying property worth 2x.
• SC: Sale of NPA to ARC – bank's valuation by registered valuer under RBI Master Direction on Transfer of Loan Exposures 2021 must be accepted unless fraud. Borrower's private valuer not relevant – no locus. Expert appointed by bank under statutory framework prevails.

7. Kotak Mahindra Bank v. A. Balakrishnan – Supreme Court – 2022 – ECL Model Expert

• Borrower challenged ECL provisioning under Ind AS 109 – said bank over-provisioned to evergreen.
• SC: ECL is expert accounting estimate – requires auditor expert. Court cannot second guess ECL model if statutory auditor certified. Borrower must produce accounting expert – mere allegation insufficient.

C. IT / CYBER SECURITY EXPERT – HACK LIABILITY

8. WazirX Hack – 2024 – $235M – IT Act Sec 43A – Expert Evidence on Reasonable Security

• Users claim: WazirX failed reasonable security – private keys in hot wallet.
• WazirX defence: Hack by North Korean Lazarus – zero-day – force majeure.
• How court decides: Needs CERT-In empanelled auditor as expert – to opine whether MPC wallet implementation met ISO 27001, whether penetration test done.
• Precedent – HDFC Bank IT Outage – RBI 2020: RBI appointed external IT expert – KPMG – to audit HDFC data centre. KPMG report found no DR – expert report basis for ban.
• Delhi HC – Vinod Kaushik v. Union – 2021 – Cyber Security Expert: Court held IT Act "reasonable security practices" must be proved by expert – mere self-certification insufficient.

9. Pegasus – NSO Group – Cyber Forensic Expert – Supreme Court Committee – 2022

• SC appointed technical committee with cyber forensic experts – to examine phone hacking – established procedure: Court-appointed expert committee report is primary evidence.

D. UK/EU – BANKING EXPERT DEFERENCE

10. Crédit Suisse v Stichting Vestia – UK High Court – 2014 – Derivatives Mis-selling – Expert on ISDA

• Housing association Vestia bought €2bn derivatives, claimed mis-selling.
• Both sides produced ISDA experts: Court preferred Credit Suisse expert – ex-ISDA board member – who explained that bank's duty is not to advise on suitability unless advisory relationship – no liability.

11. FCA v Barclays – LIBOR Manipulation – 2015 – Expert on LIBOR

• FCA used expert – Professor – to explain how LIBOR submission process works – expert evidence essential to prove manipulation.

12. ABLV Bank v ECB – C-551/19 P – FOLTF Expert

• ECB declared ABLV Failing or Likely to Fail based on US FinCEN notice. ABLV challenged – said FinCEN notice not conclusive.
• CJEU: ECB assessment of FOLTF is complex economic assessment – entitled to rely on expert third-party authority (FinCEN) – court will not substitute own assessment unless manifest error.

IV. How to Make Expert Evidence Admissible – Practical Checklist (India)

If you are Bank / Fintech Lawyer:

1. Qualification: Expert must have 15+ years in relevant field – Ex-RBI, Ex-MD, CERT-In auditor, Registered Valuer (IBBI), Forensic CA (ICAi). File CV.
2. Independence: Expert must not be current employee of party – internal officer not expert – Pradeep Kumar v SBI – must be independent.
3. Report Must Contain – Sec 39 BSA Compliance:
   • Qualification + experience
   • Facts examined (loan file, CBS log, valuation model)
   • Methodology (e.g., DCF, Black-Scholes, SWIFT audit)
   • Opinion + reasons
   • Declaration: "I have no conflict, opinion is unbiased"
4. Examination-in-Chief: Must be examined in court – report alone not evidence – State of H.P. v Jai Lal
5. Court-Appointed Joint Expert: In complex banking cases (Delhi HC commercial division), request court to appoint single joint expert under Order 26 Rule 10A CPC – saves cost and court gives more weight.

If you are Challenging Bank's Expert (Borrower/User):

• Attack methodology, not conclusion – Show expert did not follow RBI guidelines / ISO 27001 / Ind AS 109
• Show bias – Paid by bank, no independent verification
• Produce counter-expert with better credentials
• Ask for cross-examination on facts – Under Sec 39 BSA, you have right to cross-examine bank's expert

V. Cost of Expert

• Delhi High Court – Banking expert fee – Rs 3-10 lakh per report + Rs 1 lakh per day deposition – Recoverable as costs if you win under Sec 35 CPC (Commercial Courts Act).
• In EU Banking Union – Deloitte valuation fee for Popular was €3.5m – paid by SRB from Fund – but shareholders cannot claim it.

VI. Exam Answer Structure

Question: "Discuss role of expert evidence in banking resolution cases with case laws"

Answer Flow:

1. Define – Sec 39 BSA – opinion of expert relevant in banking as art/science – SBI v Shyama Devi
2. Two types – (a) Court appointed vs Party appointed – Weight difference – Banco Popular – Deloitte independent presumption
3. Standard of review – Manifest error – Court will not substitute expert – ABLV, Algebris v SRB
4. Need for expert – Banking standard of care cannot be judged without expert – ICICI v Maharaj Krishan Datta
5. IT/Cyber – Reasonable security must be proved by expert – WazirX / CERT-In
6. Conclusion – Without expert, banking case fails – must produce independent, qualified expert with methodology.