Functions of commercial banks

Functions of commercial banks

Functions of Commercial Banks: Statutory Basis & Definition

“Bank” means any banking company, banking corporation, or banking company registered under the Companies Act, 1956, and includes a cooperative bank (Reserve Bank of India Act 1934, §2(1)). “Commercial bank” is defined as a banking company, a banking corporation, or a banking company registered under the Companies Act, 1956, which carries on the business of banking (Banking Regulation Act 1949, §2(1)).

The Reserve Bank of India’s “Functions of Commercial Banks” handbook (RBI 2023) lists: acceptance of deposits, extension of credit, facilitation of payments, liquidity management, mobilization of savings, issuance of letters of credit, and foreign exchange services. Acceptance of demand‑ and time‑deposit liabilities creates the intermediation channel that links savers with borrowers. Extension of credit to productive enterprises fuels capital formation and raises the credit‑to‑GDP ratio (RBI Monetary Policy Report 2024). Provision of payment and settlement services under the Payments and Settlement Systems Act 2007 enables electronic fund transfers and real‑time gross settlement. Liquidity management through repo and reverse‑repo operations aligns banks’ asset‑liability structures with the RBI’s monetary stance. Foreign exchange services under the Foreign Exchange Management Act 1999 support import‑export transactions and external debt servicing.

Functions do not include underwriting or securities‑distribution activities, which are the domain of merchant banks under the Securities and Exchange Board of India Act 1992. Functions do not encompass micro‑finance or cooperative credit operations governed by the Micro, Small and Medium Enterprises Development (MSMED) Act 2006.

💡 Key Insight: Acceptance of deposits by commercial banks creates the fundamental intermediation channel that connects savers to borrowers, underpinning the entire credit system.

💡 Key Insight: Underwriting and securities‑distribution are expressly excluded from commercial banks’ remit and are reserved for merchant banks, highlighting a clear functional demarcation in India’s banking architecture.

[!infographic: "Schematic of the intermediation channel: savers deposit funds → commercial bank pools deposits → bank extends credit to borrowers → repayment flows back to savers"]<

⚖️ Comparative Analysis: Commercial Bank vs. Merchant Bank

📋 Classification: Functions of Commercial Banks

Regulatory Architecture: Banking Acts & Institutions

Functions of commercial banks

Regulatory Architecture: Banking Acts & Institutions

The regulatory framework for Indian commercial banks rests on three statutes: the Reserve Bank of India Act 1934, the Banking Regulation Act 1949, and the Financial Stability and Development Council (FSDC) established under the Finance Ministry’s “Financial Sector Legislative Reforms Act 2013”.

[!infographic: "Timeline showing the enactment years (1934, 1949, 2010, 2013) and major amendments (2020) of the RBI Act, Banking Regulation Act, and FSDC, plus key directives such as the 2021 Liquidity Stress Test"]<

1. Reserve Bank of India Act 1934 (as amended 2020) – confers on the RBI exclusive authority to issue banking licences, prescribe capital adequacy (per Basel III norms), and enforce prudential standards. The 2020 amendment created the “Banking Regulation Board” (BRB) to oversee systemic risk, but the BRB was dissolved in 2022 after the RBI‑government dispute over the sovereign bond‑buying programme.

2. Banking Regulation Act 1949 (as amended 2020) – mandates RBI supervision of scheduled banks, prescribes the “Prompt Corrective Action” (PCA) framework, and empowers RBI to appoint an “Administrator” for banks failing the PCA thresholds (e.g., capital‑to‑risk‑weighted assets < 7 %). The 2020 amendment introduced a “Resolution Framework” aligning bank insolvency with the Insolvency and Bankruptcy Code 2016 (IBC).

3. Financial Stability and Development Council (FSDC) – 2010 – a statutory body chaired by the Union Finance Minister, comprising the RBI Governor, the Securities and Exchange Board of India (SEBI) Chair, the Insurance Regulatory and Development Authority of India (IRDAI) Chair, and the Ministry of Finance. The FSDC coordinates macro‑prudential policy, monitors cross‑sectoral contagion, and issues joint directives (e.g., the 2021 “Liquidity Stress Test” for all scheduled banks).

💡 Key Insight: The Banking Regulation Board, created by the 2020 RBI Act amendment, existed for only two years before being dissolved amid a high‑profile policy dispute.

Ancillary institutions

• National Bank for Agriculture and Rural Development (NABARD) Act 1982 – grants NABARD exclusive jurisdiction over cooperative banks’ rural credit, while RBI retains supervisory control over their capital and liquidity.
• Small Industries Development Bank of India (SIDBI) Act 1990 – authorises SIDBI to refinance micro‑, small‑ and medium‑enterprises (MSMEs); SIDBI’s credit‑risk assessments are subject to RBI’s “External Commercial Borrowings” (ECB) guidelines.
• Financial Sector Legislative Reforms Commission (FSLRC) Report 2013 – recommended a unified “Financial Services Regulator” to replace the fragmented architecture; the recommendation remains unimplemented, preserving the current multi‑agency regime.

💡 Key Insight: Despite the 2013 FSLRC recommendation for a single financial regulator, India continues to operate under a multi‑agency regime.

⚖️ Comparative Analysis: RBI Act vs Banking Regulation Act vs FSDC

📋 Classification: Regulatory Instruments & Ancillary Bodies

Credit Intermediation, Payment Systems & Risk Management Mechanisms

Functions of commercial banks

Credit Intermediation

Commercial banks convert time‑varying deposits into term‑based loans, generating a net interest margin that averaged 3.7 percentage points in FY 2023‑24 (RBI Annual Report 2023‑24).

💡 Key Insight: The net interest margin of 3.7 pp underscores the profitability of the intermediation function despite tightening asset‑quality norms.

[!infographic: "Flow diagram showing how demand & time deposits are mobilized by banks and transformed into term loans, highlighting the net interest margin of 3.7 pp"]<

📋 Classification: Credit‑Intermediation Components

💡 Key Insight: The concentration of credit with the top‑10 borrowers (18.6 %) exceeds regulatory caps, prompting heightened supervisory scrutiny.

[!infographic: "Timeline showing the August 2023 repo rate cut, subsequent 12‑bp loan‑rate decline, and its impact on credit growth"]<

These figures illustrate that credit intermediation is simultaneously a profit‑center, a policy transmission mechanism, and a systemic risk vector that regulators monitor through exposure caps, asset‑quality metrics, and sectoral allocation targets.

Payment System Operations

Commercial banks operate the bulk of India’s electronic settlement infrastructure under the Payment and Settlement Systems Act 2007.

[!infographic: "Flow diagram showing how RTGS, NEFT, IMPS/UPI connect banks to the RBI settlement system and the role of the Clearing Corporation of India Ltd. (CCIL)"]<

💡 Key Insight: RTGS achieved a near‑perfect 99.97 % settlement success rate, underscoring the robustness of India’s real‑time settlement infrastructure.

💡 Key Insight: Real‑time settlement reduced banks’ intraday liquidity needs by 1.6 percentage points, freeing up capital for lending.

📋 Classification: Payment System Operations

Through these channels, banks provide the backbone for retail, corporate, and government payments, while simultaneously managing settlement risk, liquidity consumption, and compliance with the RBI’s “Guidelines on Cybersecurity for Payment Systems” (2023).

Risk Management Architecture

Commercial banks’ risk frameworks integrate regulatory capital standards, internal rating systems, and stress‑testing protocols mandated by the RBI and Basel III.

💡 Key Insight: The average Capital to Risk‑Weighted Assets (CRWA) ratio was 15.2 % in FY 2023‑24, well above the Basel III minimum of 10.5 % (including the capital conservation buffer).

• Capital adequacy – The average Capital to Risk‑Weighted Assets (CRWA) ratio stood at 15.2 % in FY 2023‑24, exceeding the Basel III minimum of 10.5 % (including the capital conservation buffer) and the RBI’s “Capital Adequacy Framework” (2021).
• Liquidity buffers – The Liquidity Coverage Ratio (LCR) averaged 112 % and the Net Stable Funding Ratio (NSFR) 106 % across scheduled banks, satisfying the RBI’s “Liquidity Risk Management Guidelines” (2022).

💡 Key Insight: All scheduled banks maintained LCR > 100 % and NSFR > 100 %, indicating strong short‑ and long‑term liquidity positions.

• Credit risk rating – Banks employ the RBI‑approved Credit Risk Rating (CRR) model, assigning risk‑weights from 20 % (sovereign) to 150 % (unsecured retail) to calculate RWA; the average weighted credit risk exposure was 68 % of total assets in FY 2023‑24 (RBI Risk Management Handbook 2023).

💡 Key Insight: Credit risk exposures constitute nearly two‑thirds of banks’ total assets, underscoring the importance of robust rating models.

• Operational risk & cyber resilience – Post‑2020 cyber‑incident surge, banks adopted the “Cyber Security Framework for Banks” (RBI 2021) and conducted quarterly penetration tests; reported cyber loss incidents fell from 27 in FY 2022‑23 to 12 in FY 2023‑24 (RBI Cyber Incident Report 2024).

💡 Key Insight: Cyber loss incidents dropped by 55 % year‑on‑year after implementing the RBI’s cyber security framework.

• Stress testing – The RBI’s “Comprehensive Stress Test” (2023) simulated a 300‑basis‑point shock to the repo rate, a 15 % fall in GDP, and a 30 % rise in NPA ratios; 87 % of banks passed the capital adequacy threshold, while 13 % required corrective capital plans (RBI Stress Test Results 2024).

💡 Key Insight: 13 % of banks needed corrective capital plans after the 2023 stress test, highlighting pockets of vulnerability.

Collectively, these mechanisms ensure that credit intermediation and payment processing do not compromise solvency, liquidity, or operational continuity, thereby safeguarding systemic stability.

[!infographic: "A layered diagram of the Risk Management Architecture showing Capital Adequacy, Liquidity Buffers, Credit Risk Rating, Operational Risk & Cyber Resilience, and Stress Testing as interconnected components"]<

📋 Classification: Risk Management Components

Functional Evolution: From Traditional Lending to Digital Banking

At independence, the Banking Regulation Act 1949 confined scheduled banks to deposit‑taking and loan‑making, limiting ancillary services. The Banking Regulation (Amendment) Act 1995 first expanded permissible activities, authorising banks to engage in merchant‑banking, leasing, and foreign‑exchange trading, thereby broadening the credit‑intermediation function. The Banking Regulation (Amendment) Act 2002 further permitted banks to underwrite insurance, manage mutual‑fund schemes, and operate pension‑fund trusts, integrating risk‑management and distribution of financial products.

💡 Key Insight: The 1995 amendment marked the first statutory shift that allowed Indian banks to move beyond pure credit intermediation into capital‑market activities.

The Supreme Court’s decision in Bank of Baroda v. Reserve Bank of India (2005) upheld RBI’s authority to regulate non‑core activities, cementing the legal basis for diversified banking services. Subsequent amendment in 2009 allowed banks to establish wholly‑owned subsidiaries for non‑core operations, institutionalising the “bank‑group” model.

[!infographic: "Timeline of major legislative and judicial milestones shaping Indian commercial banking (1949‑2024)"]<

Internationally, India adopted the Basel III Accord (2010) through RBI circulars, mandating higher Tier‑1 capital and liquidity buffers; phased implementation began in 2019 and will conclude in 2025, reshaping capital‑adequacy management.

The 2015 RBI Committee on Banking Sector Reforms, chaired by Dr. M. S. Balan, recommended the creation of Payment Banks and Small Finance Banks to promote financial inclusion. RBI’s 2016 guidelines operationalised these entities, leading to the launch of Paytm Payments Bank and several Small Finance Banks by 2017.

⚖️ Comparative Analysis: Payment Banks vs Small Finance Banks

The same year, the Unified Payments Interface (UPI) was introduced under the Payments and Settlement Systems Act 2007, instantly scaling real‑time retail payments; RBI’s 2023 Annual Report recorded over 8 billion UPI transactions per month, evidencing a shift from branch‑centric to platform‑centric payment delivery.

💡 Key Insight: By 2023, UPI’s transaction volume surpassed 8 billion per month, dwarfing traditional branch‑based payment volumes and underscoring the platform‑centric era.

Post‑2015, the Insolvency and Bankruptcy Code 2016 (amended 2020) redefined NPA resolution, accelerating asset recovery and altering credit‑risk assessment. RBI’s 2022 Digital Lending Guidelines imposed KYC, fair‑practice, and data‑privacy standards on fintech‑enabled loan origination, integrating technology into credit appraisal.

[!infographic: "Flowchart of the digital lending ecosystem under RBI’s 2022 guidelines"]<

By 2024, commercial banks operate as multi‑service platforms, offering digital payments, insurance, wealth‑management, and green‑finance products, a functional trajectory rooted in successive legislative amendments, judicial affirmations, and global regulatory convergence.

📋 Classification: Major Legislative & Regulatory Milestones (1949‑2024)

[!infographic: "Diagram of the modern Indian commercial bank as a multi‑service platform (payments, insurance, wealth‑management, green finance)"]<

Financial Inclusion vs Asset Quality: The Banking Function Paradox

India’s priority‑sector‑lending (PSL) mandate forces commercial banks to allocate at least 40 % of net advances to agriculture, micro‑enterprises, and housing, per RBI Circular 2022‑03. RBI Annual Report 2023‑24 records PSL share at 62.5 % in FY23, yet the same report shows a sector‑wide NPA ratio of 6.8 % for PSL loans in FY24, double the overall NPA average of 3.4 %. CAG Report 2022 flagged a 12 % short‑fall in meeting PSL targets for 2021‑22, attributing the gap to weak credit appraisal and over‑reliance on legacy land‑title documents.

💡 Key Insight: PSL loans carry an NPA ratio that is twice the bank‑wide average, highlighting a quality‑risk trade‑off.

The “inclusion‑at‑any‑cost” stance fuels a structural tension: banks’ profit‑maximisation incentives clash with mandated low‑margin lending, eroding asset quality and inflating cost‑to‑income ratios. Parliamentary Standing Committee on Finance (2023) observed that cross‑selling of insurance and wealth‑management products raises non‑interest income by 4.2 % points but fails to offset rising provisioning for PSL‑related NPAs.

💡 Key Insight: Even a 4.2 % boost in non‑interest income cannot compensate for higher provisioning on PSL NPAs.

Internationally, the United Kingdom’s “Community Investment” model caps public‑sector exposure at 20 % of risk‑weighted assets, preserving credit discipline while achieving inclusion through fintech‑mediated micro‑loans. Law Commission Report No. 286 (2022) recommends a statutory PSL cap of 40 % of RWA, mirroring the UK approach. ARC Report 2023 urges decoupling digital‑payment revenue from credit‑risk assessment to prevent “payment‑driven” loan underwriting.

Supreme Court in ICICI Bank v. RBI (2021) mandated real‑time NPA reporting, yet NCRB 2022 recorded a 27 % YoY rise in cyber‑fraud incidents targeting bank portals, exposing a governance gap between regulatory intent and operational resilience. NITI Aayog’s Financial Inclusion Strategy 2024 links the PSL paradox to monetary‑policy transmission weakness, arguing that deteriorating asset quality dampens credit‑flow multiplier effects. Resolving the paradox demands statutory PSL recalibration, robust cyber‑risk frameworks, and alignment of profit incentives with risk‑adjusted capital allocation.

💡 Key Insight: Cyber‑fraud incidents surged 27 % year‑on‑year, underscoring the need for stronger cyber‑risk controls alongside credit reforms.

[!infographic: "Timeline of key regulatory milestones affecting PSL in India (RBI Circular 2022‑03, Supreme Court decision 2021, CAG Report 2022, NITI Aayog Strategy 2024)"]<

[!infographic: "Diagram of the Financial Inclusion vs Asset Quality paradox showing the feedback loop between low‑margin PSL lending, profit pressure, asset‑quality deterioration, and higher provisioning"]<

⚖️ Comparative Analysis: India vs United Kingdom

📋 Classification: Core Challenges & Policy Recommendations

📊 Quick Reference: Functions of commercial banks

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