Definition of Banking

Banking, as defined under Section 5(b) of the Banking Regulation Act, 1949, is the acceptance of deposits of money from the public, repayable on demand or otherwise, and withdrawable by cheque, draft, order, or otherwise. A bank is a licensed financial institution that provides services including accepting deposits, lending money, facilitating financial transactions, and increasingly, delivering digital financial services.

The Reserve Bank of India (RBI) is the apex regulatory authority that governs all scheduled commercial banks, co-operative banks, small finance banks, and payment banks operating in India under the RBI Act, 1934 and the Banking Regulation Act, 1949.

Definition of Customer

A bank customer is any person or entity that maintains an account and/or has a transactional or service relationship with the bank. The customer may be:

• An individual (resident or non-resident)
• A proprietorship firm
• A partnership firm
• A company or corporate entity
• A trust, society, or HUF

The relationship begins the moment a prospective customer approaches the bank with a genuine intention to open an account — even before the account is formally opened. This principle was established in the landmark case of Ladbroke v. Todd (1914), which is still cited in Indian banking jurisprudence.

In the digital era, the definition has expanded to include customers who use banking services exclusively through digital channels without visiting a branch, thanks to Video-based Customer Identification Process (V-CIP) introduced by RBI via its KYC Master Direction (amended 2021 and 2024).

General Banker Customer Relationship

The foundational relationship between a banker and a customer is primarily that of debtor and creditor, but this transforms into various other legal relationships depending on the nature of the transaction. Each relationship carries specific rights, duties, and liabilities for both parties.

1. Debtor and Creditor Relationship

This is the most fundamental of all banker customer relationships. When a customer deposits money into a bank account, the bank borrows those funds and becomes the debtor, while the customer becomes the creditor. The bank does not hold the deposited money as a custodian — it becomes the owner of those funds and has the obligation to repay an equivalent amount on demand.

This principle was firmly established in the landmark English case of Foley v. Hill (1848), which continues to be the cornerstone of banking law in India. Key implications of this relationship include:

• The bank can use deposited funds for lending or investment without seeking the customer’s permission.
• The customer can demand repayment only as per the agreed terms (e.g., on demand for savings/current accounts, at maturity for fixed deposits).
• No interest is payable on demand deposits unless contractually agreed.

Conversely, when a bank extends a loan or overdraft facility to a customer, the roles are reversed — the bank becomes the creditor and the customer becomes the debtor. The customer is obligated to repay the principal along with interest as per the loan agreement.

2. Trustee and Beneficiary Relationship

When a customer entrusts specific assets or funds to the bank for a defined purpose — such as safe custody of documents, securities, or valuable articles — the bank assumes the role of trustee and the customer becomes the beneficiary. In this relationship, the bank cannot use the entrusted assets for its own benefit and must return them to the customer on demand.

A classic example is when a customer deposits a cheque or draft for collection. Until the funds are credited to the customer’s account, the bank holds those proceeds as a trustee. Similarly, when a bank retains documents of title to property as part of a loan arrangement, it holds them in a fiduciary capacity.

3. Principal and Agent Relationship

Banks frequently act as agents on behalf of their customers to carry out specific financial transactions. In this relationship, the customer is the principal and the bank is the agent. The bank acts on the express or implied instructions of the customer and within the scope of the authority granted.

Common examples of this relationship include:

• Collection of cheques, drafts, and bills of exchange
• Payment of utility bills, insurance premiums, and EMIs through standing instructions
• Purchase or sale of securities on behalf of the customer
• Execution of Mail Transfers (MT) and Telegraphic Transfers (TT) / RTGS / NEFT / IMPS
• Acting as an executor or administrator of an estate

The bank is entitled to be reimbursed for costs incurred and may charge a commission for agency services.

4. Lessor and Lessee Relationship

When a bank provides a safe deposit locker to a customer, it assumes the role of lessor and the customer becomes the lessee. The bank leases its immovable infrastructure (the locker vault space) to the customer for a specified rental. The customer has the right to use the locker for storing valuables but the bank does not know — nor is it responsible for — the contents of the locker.

RBI Master Direction on Safe Deposit Lockers (2021, revised 2023) brought significant changes to this relationship, including mandatory locker agreements, bank liability for loss due to bank’s negligence or fraud (up to 100 times the annual rent), and mandatory nomination facility for locker holders.

5. Pledger and Pledgee Relationship

When a customer pledges movable assets or securities as collateral to obtain a loan, the customer is the pledger and the bank is the pledgee. The distinguishing feature of a pledge is that the physical possession of the asset is transferred to the bank, though ownership remains with the customer.

Under Section 172 of the Indian Contract Act, 1872, the bank as pledgee has the right to:

• Retain the pledged asset until the loan is repaid.
• Sell the asset after giving reasonable notice in case of default.
• Sue for the loan amount even if the value of the pledged asset is insufficient.

Common examples include gold loans (pledge of gold jewellery), loans against shares, and loans against warehouse receipts.

6. Bailor and Bailee Relationship

When a customer delivers their goods or valuables to the bank for safekeeping — without entering into a locker arrangement — the bank acts as a bailee and the customer is the bailor. Unlike a pledge, in a bailment, no loan is associated with the arrangement; the goods are simply entrusted for safe custody.

Under Section 151 of the Indian Contract Act, 1872, the bank as bailee is required to exercise the same level of care that a person of ordinary prudence would exercise over their own goods. If goods are lost or damaged due to the bank’s negligence, the bank is liable.

7. Advisor and Client Relationship

As banks expand into wealth management, insurance, and investment distribution, an advisor-client relationship emerges. When a bank provides financial planning advice, recommends investment products, or distributes mutual funds and insurance on behalf of third parties, it acts as an advisor or intermediary.

Under SEBI Investment Adviser Regulations, 2013 and IRDAI regulations, banks that distribute investment or insurance products must disclose their capacity (whether as an advisor or distributor) and ensure products recommended are suitable for the customer’s financial profile and risk appetite. The growing emphasis on suitability and appropriateness has strengthened customer protection in this relationship.

8. Mortgagor and Mortgagee Relationship

When a customer offers immovable property as security for a bank loan, the customer becomes the mortgagor and the bank becomes the mortgagee. Unlike a pledge, ownership of the property does not transfer to the bank — only a charge is created on the property.

Under the Transfer of Property Act, 1882, there are several types of mortgages used in banking:

• Simple mortgage – Borrower personally undertakes to repay; bank can sell property through court intervention.
• Mortgage by deposit of title deeds (Equitable mortgage) – Most common in home loans; customer deposits title documents with the bank.
• English mortgage – Absolute transfer of property to the bank with right to redeem on repayment.

The SARFAESI Act, 2002 empowers banks to enforce security interests in mortgaged immovable property without court intervention in case of default (for loans above ₹1 lakh).

9. Hypothecator and Hypothecatee Relationship

Hypothecation is a form of security where the customer creates a charge on movable assets (such as stocks, debtors, vehicles, or machinery) without transferring possession to the bank. The customer remains in possession of the hypothecated assets and can continue using them in the ordinary course of business.

The bank (hypothecatee) has the right to take possession of and sell the hypothecated assets in case of default. This is the most common form of security for working capital loans (cash credit limits) extended to businesses. The SARFAESI Act also provides remedies to banks for enforcing hypothecation charges.

Digital Banking and the Evolving Banker Customer Relationship

The rapid digitalisation of banking services has introduced new dimensions to the traditional banker customer relationship. While the foundational legal principles remain the same, the modes of service delivery, contractual frameworks, and regulatory obligations have evolved significantly.

Internet Banking and Mobile Banking

When a customer registers for internet or mobile banking, they enter into an additional contractual arrangement with the bank governed by the Terms and Conditions of Digital Banking Services. This creates a technology-mediated principal-agent relationship where the bank executes instructions provided by the customer through digital channels.

Key aspects of this relationship include:

• The bank’s obligation to implement multi-factor authentication (MFA) as mandated by RBI Circular on Internet Banking (2011) and its subsequent updates.
• Liability allocation in cases of unauthorised transactions — governed by RBI’s Framework on Customer Protection in Unauthorised Electronic Banking Transactions (2017), which limits customer liability based on the nature of the fraud (bank’s negligence vs. customer negligence).
• Obligation of the bank to provide real-time transaction alerts via SMS/email.

UPI-Based Transactions

With the Unified Payments Interface (UPI) now the dominant payment rail in India — processing over 16 billion transactions per month as of 2024 — a new layer has been added to the banker customer relationship. In UPI transactions:

• The Payer’s Bank (remitting bank) acts as the Payment Service Provider (PSP) and acts as an agent of the payer.
• The Payee’s Bank acts as the agent of the beneficiary.
• NPCI acts as the settlement intermediary.

The relationship is governed by the NPCI UPI Procedural Guidelines and the bank’s UPI Terms and Conditions accepted by the customer. In case of failed or disputed transactions, the bank’s liability and resolution timelines are defined by RBI’s Harmonised Framework for Turn Around Time (TAT) for Resolution of Customer Complaints (2019, revised 2023).

CBDC (Digital Rupee / e₹)

The RBI launched the Central Bank Digital Currency (CBDC) — known as the Digital Rupee (e₹) — with a wholesale pilot in November 2022 and a retail pilot in December 2022. As CBDC adoption grows, it introduces a new type of banker customer relationship:

• In the retail CBDC model, banks act as intermediaries distributing e₹ wallets to customers. The relationship is one of agent (bank) and principal (RBI) on one side, and service provider (bank) and customer on the other.
• Unlike bank deposits, CBDC represents a direct liability of RBI, not the commercial bank, meaning the debtor-creditor relationship in its traditional form does not apply for CBDC balances.

Co-Lending Arrangements

RBI’s Co-Lending Model (CLM) Guidelines (2020, updated 2023) permit banks and Non-Banking Financial Companies (NBFCs) to jointly originate and fund priority sector loans. In a co-lending arrangement:

• The NBFC originates and services the loan, acting as an agent of the bank.
• The bank funds the majority (typically 80%) of the loan.
• The customer’s primary relationship is with the originating NBFC, but the bank is the ultimate creditor for its portion of the loan.

This creates a tri-party relationship that adds complexity to the traditional banker customer framework and requires enhanced disclosure to borrowers about the nature of the arrangement.

Special Banker Customer Relationship

Beyond the transactional relationships, there are certain overriding obligations and special duties that characterise the banker customer relationship irrespective of the nature of the transaction.

Maintaining Records

Banks are required under the Banking Regulation Act, 1949 and various RBI Master Directions to maintain accurate and complete records of all customer accounts and transactions. Under the Prevention of Money Laundering Act, 2002 (PMLA), banks must preserve records of transactions for a minimum period of five years from the date of transaction or the cessation of the account relationship.

Customers have the right to request account statements, transaction records, and other documents maintained by the bank, subject to the bank’s operational policies and applicable charges.

Maintaining Confidentiality

The duty of confidentiality is one of the most fundamental obligations of a bank. This was firmly established in the English case of Tournier v. National Provincial and Union Bank of England (1924), which held that a bank is under an implied obligation not to disclose a customer’s account information to third parties except in four recognised circumstances:

1. Where disclosure is required by law (e.g., disclosure to Income Tax authorities, FEMA authorities, Court orders).
2. Where there is a duty to the public to disclose (e.g., reporting suspicious transactions to FIU-India under PMLA).
3. Where the bank’s own interests require disclosure.
4. Where disclosure is made with the customer’s express or implied consent.

Digital Personal Data Protection Act, 2023 (DPDP Act)

The enactment of the DPDP Act, 2023 has significantly strengthened the data privacy rights of bank customers in the digital context. Key implications for the banker customer relationship include:

• Consent-based data processing: Banks (as “Data Fiduciaries”) must obtain explicit, informed consent from customers (“Data Principals”) before processing their personal data.
• Right to information: Customers have the right to know what personal data the bank holds about them and how it is being used.
• Right to correction and erasure: Customers can request correction of inaccurate data or erasure of data no longer required for the stated purpose.
• Data minimisation: Banks can collect only the data necessary for the specific purpose — a significant constraint on the traditionally extensive data collection practices of banks.
• Breach notification: Banks are required to notify the Data Protection Board of India and affected customers in case of a personal data breach within prescribed timelines.

Banks are in the process of updating their Privacy Policies and customer consent frameworks in line with the DPDP Act, 2023, with detailed Rules expected to be notified in 2025.

Obligation to Honor Cheques

A bank is contractually obligated to honour a customer’s cheque when:

• There are sufficient cleared funds in the account.
• The cheque is drawn correctly and is not post-dated or stale (not older than 3 months from the date of issue as per RBI guidelines).
• No stop payment instruction has been received from the drawer.
• The cheque does not violate any legal attachment or court orders on the account.

Wrongful dishonour of a cheque can expose the bank to liability for damages, including loss of creditworthiness and reputation of the customer. The drawer of a dishonoured cheque (when issued for discharge of a debt) may also face criminal liability under Section 138 of the Negotiable Instruments Act, 1881.

Nominee and Legal Heir Relationship

The Banking Companies (Nomination) Rules, 1985, as recently strengthened by the RBI Master Circular on Nomination (2024), govern the relationship between the bank and the nominee of a deceased customer. Key points include:

• A nominee is entitled to receive the balance in the deceased customer’s account as a trustee for the legal heirs — not as the absolute owner.
• In the absence of a nomination, banks must follow the Succession Certificate or Letters of Administration process, which is significantly more cumbersome.
• Banks are now required to proactively contact nominees of deceased account holders and facilitate settlement within defined timelines under RBI’s latest directives.

RBI Regulatory Framework Governing the Relationship (2024–25)

The banker customer relationship in India operates within a comprehensive regulatory framework. Key RBI guidelines updated in 2024–25 that directly govern this relationship include:

KYC Master Direction (Updated 2024): Governs the Customer Due Diligence (CDD) process, including V-CIP for digital onboarding, periodic KYC updates, and Risk-Based Approach (RBA) for customer categorisation.

RBI Circular on Customer Service (Updated 2024): Mandates minimum standards for customer service at branches and digital channels, including timelines for grievance redressal and escalation to the Banking Ombudsman.

Banking Ombudsman Scheme (Integrated Ombudsman Scheme, 2021): Provides customers with a single-window mechanism for redressal of complaints against banks, NBFCs, and payment system operators. Customers can file complaints at cms.rbi.org.in with no fees.

RBI Framework on Responsible Lending Conduct (2023): Establishes obligations of banks regarding fair and transparent communication of loan terms, Key Fact Statement (KFS) for retail and MSME loans, and prohibition of exploitative practices.

Master Direction on Interest Rate on Deposits (Updated 2024): Governs the bank’s obligations regarding interest payment on deposits, premature withdrawal terms, and treatment of unclaimed deposits.

Depositor Education and Awareness Fund (DEAF): Deposits that are unclaimed for 10 years are transferred to RBI’s DEAF. Customers can claim these amounts from the respective bank even after transfer to DEAF.

Termination of Banker Customer Relationship

The banker customer relationship can be terminated in the following circumstances:

Liquidation of the Company: If a corporate customer undergoes winding up or insolvency proceedings under the Insolvency and Bankruptcy Code, 2016 (IBC), the bank may be directed by the Resolution Professional or liquidator to freeze/close accounts.

Death or Mental Incapacity of a Customer: The relationship terminates on the death of the customer. The bank stops honouring cheques upon receiving notice of death and requires legal heir documentation or nomination claims to settle the account. In the case of a declared lunatic (person of unsound mind under legal adjudication), the bank is required to deal only with the court-appointed guardian.

Completion of Contract: On fulfilment of the contractual agreement — such as repayment of a loan — the specific relationship arising from that contract terminates. The bank issues a No Dues Certificate (NOC) and releases any security held.

Voluntary Closure of Account: Customers may close their account by submitting a written request, returning the passbook and unused cheque leaves, and ensuring all outstanding obligations are settled.

Involuntary Closure / Account Restriction: Banks may restrict or close an account if the customer is found to have provided false KYC information, is linked to fraudulent activity, or fails to maintain minimum balance requirements persistently.

Non-compliance with KYC / AML Regulations: Under RBI’s KYC Master Direction and PMLA, 2002, banks are mandated to freeze or close accounts of customers who fail to complete periodic KYC updates. Banks must also file Suspicious Transaction Reports (STRs) with FIU-India and can exit the relationship if AML risk is deemed unacceptably high.

Bankruptcy or Insolvency of the Customer: Filing under the IBC triggers an automatic moratorium on enforcement of claims, and the bank must deal with the Insolvency Professional for settlement.

Merger or Acquisition of the Bank: In a bank merger (such as the consolidation of PSU banks in 2019-20), the customer relationship automatically transfers to the acquiring bank. Customers are notified and their accounts, products, and services are migrated as per RBI-approved scheme of amalgamation.

Termination by Customer Complaint / Regulatory Direction: RBI may direct a bank to exit relationships with certain categories of customers (e.g., in the context of cryptocurrency exchange accounts) through regulatory circulars or administrative directions.

Banker Customer Relationship – Complete Reference Table

Frequently Asked Questions (FAQs)

Q1. What is the primary relationship between a banker and customer?

The primary relationship is that of debtor and creditor. When a customer deposits money, the bank becomes the debtor (borrower of funds) and the customer becomes the creditor. When the bank lends money, the roles reverse.

Q2. Is the banker-customer relationship purely contractual?

Yes, at its core it is contractual — governed by the account opening agreement and related documents. However, it is also shaped by statute (Banking Regulation Act, RBI Master Directions), common law principles (Foley v. Hill, Tournier), and fiduciary obligations depending on the type of transaction.

Q3. Does a bank own the money deposited by a customer?

Yes. Once deposited, the money becomes the property of the bank, which can deploy it freely. The bank’s obligation is to repay an equivalent sum on demand — not the same notes/coins originally deposited. This was established in Foley v. Hill (1848).

Q4. What are a bank’s obligations if it dishonours a cheque wrongfully?

The bank is liable to pay damages to the customer for loss of reputation and creditworthiness. This is based on the principle established in Rolin v. Steward (1854) — “the smaller the man, the greater the damages.” The customer may also pursue remedies through the Banking Ombudsman.

Q5. How has the DPDP Act 2023 changed the banker-customer relationship?

The DPDP Act, 2023 has strengthened customer rights around personal data. Banks must now obtain explicit consent for data processing, give customers the right to access, correct, and erase their data, and notify them in case of data breaches. It significantly limits banks’ ability to share customer data with third-party marketers without consent.

Q6. What happens to a bank account when a customer dies?

Upon receiving notice of a customer’s death, the bank stops honouring cheques signed by the deceased. The account balance is paid to the nominee (who holds the amount as trustee for legal heirs) or to the legal heirs upon submission of a Succession Certificate, Letters of Administration, or as per the bank’s simplified settlement procedures for small amounts.

Q7. Can a bank close a customer’s account without notice?

Generally, a bank must give reasonable notice before closing a customer’s account, except in cases involving fraud, criminal activity, court orders, or regulatory directions. RBI guidelines mandate due process and fair treatment even in involuntary account closures.

Q8. What is the difference between pledge and hypothecation?

In a pledge, physical possession of the asset is transferred to the bank. In hypothecation, the customer retains possession and continues using the asset, while the bank has a charge on it. Pledge is used for gold loans and loans against shares; hypothecation is used for vehicle loans and working capital facilities against stock/debtors.

Q9. What recourse does a customer have against a bank?

Customers can approach: (1) the bank’s internal grievance redressal mechanism → (2) the Banking Ombudsman (under the Integrated Ombudsman Scheme, 2021) for unresolved complaints → (3) the Appellate Authority at RBI → (4) Consumer Forums or Courts as a last resort.

Q10. How does the Co-Lending Model affect the borrower’s relationship with the bank?

Under co-lending, the borrower has a primary relationship with the originating NBFC for servicing purposes, but a portion of the loan liability is owed to the bank. The borrower must be disclosed the co-lending arrangement including the respective shares of the bank and NBFC, as mandated by RBI’s Co-Lending Model Guidelines (2020, updated 2023).

Conclusion {#conclusion}

The banker customer relationship is far more nuanced than a simple transactional arrangement. It is a dynamic, multi-dimensional legal and contractual framework that evolves with every new service, technology, and regulatory development. From the foundational debtor-creditor relationship established by Foley v. Hill to the emerging dynamics of CBDC wallets and co-lending models, the relationship continues to adapt to the needs of the modern financial ecosystem.

Understanding this relationship is essential — not just for banking professionals and law students, but for every individual and business that participates in the financial system. With the DPDP Act 2023 strengthening data rights, RBI’s Integrated Ombudsman Scheme enhancing grievance redressal, and digital banking redefining how services are delivered, customers today have greater rights and protections than ever before.

Stay informed, know your rights, and leverage the regulatory framework to ensure your banking relationship works in your best interest.

This article is authored by a banking and finance professional with over 10 years of experience across credit, risk management, and banking operations. It is intended for educational purposes and reflects regulatory developments up to February 2026. For specific legal or financial advice, consult a qualified professional.

Last Reviewed: February 2026 | Source: RBI Master Directions, Banking Regulation Act 1949, DPDP Act 2023, IBC 2016, PMLA 2002