1. Legal Framework

A. CPC Order XI — Discovery and Inspection — The General Law:

• Order XI Rule 1-11 — Discovery by Interrogatories: Plaintiff/defendant with leave of court can deliver written questions to opposite party to answer on oath. In banking litigation, interrogatories used to ask: "Was account statement sent? What is basis of interest charged?"
• Order XI Rule 12 — Discovery of Documents: Any party may without filing affidavit apply for order directing other party to make discovery on oath of documents which are or have been in his possession relating to matter in question.
  • Linchpin: Relevancy — Court competent to direct discovery of documents relating to matter in question — banking case: loan file, sanction letter, correspondence, ledger.
  • Procedure: Application under Rule 12 → Court if satisfied may order affidavit of documents (Rule 13) listing all documents in possession.
• Order XI Rule 14 — Production of Documents: Court can order production for inspection.
• Order XI Rule 21 — Consequence of Non-Compliance: If plaintiff fails to comply → suit dismissed for want of prosecution. If defendant fails → defence struck out, placed as if not defended. Party seeking discovery may apply for order to that effect.
• Supreme Court in Raj Narain v. Indira Gandhi (1972 SC): Discovery can be used either to support one's case or to destroy opponent's case.
• Order XI Rule 14 is discretionary — cannot be used as substitute for notice to produce, certified copies, or adverse inference. Bank statements obtainable via court records or public authorities should be sought via proper procedural route, not coercive order.

B. Special Banking Law — Bankers' Books Evidence Act, 1891 (BBEA) — Now Replaced by Bankers' Books Evidence Bill 2024 but principles same:

• Sec 4: Certified copies of accounts produced by banks become prima facie evidence of existence of original entries and admitted as evidence without formal proof.
• Protection: Bank officer cannot be compelled to produce original books or appear as witness where bank not party, unless court orders for "special cause". Bill defines special cause as: accuracy doubtful, record-keeping interrupted, bank disobeys inspection order.
• Supreme Court in K.S. Puttaswamy (Privacy) noted: BBEA confers statutory protections against inspection and dissemination of bankers books — implicitly recognizing confidentiality, allowing disclosure only under defined legal procedures.
• Electronic Records: Sec 2(8) — Provisions apply to bank records maintained in electronic form. Sec 65B Indian Evidence Act not applicable — BBEA has own certification.

C. DRT / SARFAESI — No CPC Discovery:

• Recovery of Debts & Bankruptcy Act 1993 Sec 22: DRT not bound by CPC — guided by principles of natural justice — can regulate own procedure — but discovery powers borrowed from CPC.
• SARFAESI Act Sec 17: DRT examines legality of measures under Sec 13(4). Jurisdiction of Civil Court barred for matters DRT empowered. But Supreme Court held DRT cannot adjudicate title disputes, validity of sale deeds predating enforcement — Civil Court retains jurisdiction.
• Inter-creditor disputes under Sec 11 SARFAESI must be arbitrated, not DRT — SC 2025 ruling: Financial Institutions Must Arbitrate, Not Litigate.

2. Banking Litigation Discovery Procedure — Step by Step

Stage 1: Borrower files Suit / Bank files OA in DRT
Bank must file along with OA: Certified copies under BBEA of statement of accounts, sanction letter.

Stage 2: Discovery Application
Borrower files application under Order XI Rule 12 CPC (or Sec 22 RDB Act application in DRT) seeking:

• Complete loan file, internal notes, correspondence, CCTV if alleges forgery, email approvals, valuation reports

Stage 3: Objection by Bank
Bank typically objects on:

• Confidentiality / banker-customer confidentiality
• Irrelevant / fishing expedition

Stage 4: Court Test — Relevancy + Proportionality
Court asks: Is document relevant to controversy? In banking case: e.g., original defendant bank challenged order dated 22-4-1985 directing discovery — High Court under Sec 115 CPC held court competent to direct discovery but must show relevancy.

Stage 5: Affidavit of Documents
If ordered, bank files affidavit listing documents — including privileged (claims privilege under BBEA).

Stage 6: Inspection — Order XI Rule 15-19
Other party can inspect and take copies.

Stage 7: Non-Compliance — Consequences

• Adverse inference under Sec 114(g) Evidence Act
• Defence struck off under Order XI Rule 21
• In DRT, Tribunal can draw adverse inference and allow claim.

3. Landmark Case Laws

1. Chandradhar Goswami & Others v. Gauhati Bank Ltd. AIR 1967 SC 898 — Enhanced Evidentiary Standards
Bank relied solely on entries in account books to claim Rs 10,000 advance. Supreme Court held: Gauhati Bank Ltd could not merely by showing entries establish advance. Sec 4 BBEA gives special privilege — certified copies become prima facie evidence of existence of original entries — but not sufficient alone to establish liability without corroborative proof. Bank must prove advance actually made. This is still leading case — mere account entries insufficient.

2. Sethi v. Kapur — Supreme Court on Discovery Applicability
High Court overturned discovery order arguing discovery should not apply in summary proceedings under Order 33 CPC (forma pauperis). Supreme Court held discovery could indeed be ordered — Order 11 applies even to Order 33 proceedings once application to sue as indigent deemed suit commenced.

3. Ulster Bank v. O'Brien — Supreme Court (Ireland/UK persuasive) — Banks Need Not Comply with BBEA When Proving Claim
Supreme Court clarified application of Bankers' Books Evidence Acts — banks need not comply with provisions of Acts when proving claim for monies due from defaulting borrower — certified copy enough, need not produce original unless special cause.

4. Mardia Chemicals Ltd. v. Union of India (2004) — SARFAESI Jurisdictional Bar
Established jurisdiction of Civil Courts barred in matters DRT empowered under SARFAESI. Later refined — Civil Court retains jurisdiction for title, partition.

5. Recent Supreme Court 2025-26 Banking Digest:

• S. 11 SARFAESI — DRT Can't Decide Inter-Bank Disputes Over Secured Assets — Must Be Arbitration: SC May 23, 2025 held inter-creditor disputes must be resolved through arbitration under Sec 11 SARFAESI r/w Arbitration Act. DRT lacks jurisdiction.
• Kotak Mahindra Bank v. Trupti Sanjay Mehta (2026 INSC 943) Sept 2, 2026: Bench Sanjay Kumar & Sanjeev Sachdeva — Bank that buys loan from non-banking lender can use SARFAESI even though original lender not covered when loan made. Borrower holding Sec 13(2) notice — defences still open.

4. Practical Strategy — How Lawyers Use Discovery in Banking Cases

For Borrower:

• File Order XI Rule 12 + Rule 14 + Sec 91 CrPC if alleges forgery — demand original loan application, specimen signature card — can request court to compare signature under Sec 73 Indian Evidence Act using certified copy of specimen signature maintained by bank.
• If bank fails to produce, seek adverse inference — account not maintained properly.

For Bank:

• Rely on Sec 4 BBEA — file certified copy with certificate signed by officer — stating copy is true, book was in ordinary course. No need to bring officer unless special cause.
• Object to fishing — borrower asking for entire bank's internal policy irrelevant.

DRT Shortcut:
DRT can summon bankers books under Sec 22(2)(b) RDB Act — power same as Civil Court under Order XI.