Banking System in India: Structure & Types of Banks

By Dooit UPSC expert · 6 October 2026 · 11 min read

The banking system is the circulatory system of the Indian economy — and for UPSC, it is one of the most reliably rewarding chapters in the entire GS3 syllabus. Get its architecture clear once, and prelims factual questions and mains analytical questions both become easy marks.

In three decades of mentoring aspirants, I have seen the same pattern repeat every year. Candidates pour weeks into current affairs on NPAs, mergers and digital payments, yet stumble on a simple prelims question asking which category a payments bank falls under. The reason is always the same: they learned the headlines but never built the skeleton. This post gives you that skeleton — the permanent structure on which every banking news item hangs. Learn it as a tree, from the apex downward, and you will never be confused again.

Why banking matters so much for UPSC

Banking appears across the exam. In Prelims, it shows up as factual questions on the types of banks, the role of the RBI, and terms like CRR, SLR and the repo rate. In Mains GS Paper 3, it is central to topics on mobilisation of resources, financial inclusion, the NPA crisis, and banking sector reforms. It also feeds into the economy section of the interview, because the health of banks is a standing talking point in any discussion of the Indian economy. A single well-built base here serves all three stages — which is exactly the kind of high-leverage topic you should prioritise.

The apex: the Reserve Bank of India

At the top of the pyramid stands the Reserve Bank of India (RBI), the country's central bank. It was established on 1 April 1935 under the Reserve Bank of India Act, 1934, and was nationalised in 1949. The RBI is not a commercial bank — ordinary citizens do not open accounts with it. Instead, it is the regulator, the banker to the government, the banker to other banks, the issuer of currency, the custodian of foreign exchange reserves, and the controller of monetary policy.

Its regulatory power over commercial banks flows mainly from the Banking Regulation Act, 1949. Remember this distinction clearly: the RBI Act governs the central bank itself, while the Banking Regulation Act governs the banks it supervises. Examiners love testing whether you can keep the two statutes apart. If you want the deeper story of how the RBI steers inflation and growth, read our dedicated piece on monetary policy, the MPC and the repo rate — it pairs naturally with this structural overview.

Scheduled versus non-scheduled banks

The first great divide in the system is between scheduled and non-scheduled banks. The line is drawn by a single document.

A scheduled bank is one included in the Second Schedule of the Reserve Bank of India Act, 1934. To be listed, a bank must satisfy the RBI's conditions — historically a minimum paid-up capital and reserves, and the assurance that its affairs are not conducted against depositors' interests. The advantages are real: scheduled banks become eligible to borrow from the RBI at the bank rate and to avail of other central-bank facilities. In return, they must maintain the Cash Reserve Ratio (CRR) with the RBI.

A non-scheduled bank is simply one not listed in that Second Schedule. These are few today, and typically small. They maintain their reserve requirements with themselves rather than depositing them with the RBI, and they do not ordinarily enjoy the borrowing facilities that scheduled banks do.

Scheduled commercial banks: the main workhorses

Scheduled banks branch into scheduled commercial banks and scheduled cooperative banks. The commercial banks are the ones you deal with daily, and they fall into clear categories.

Public sector banks

These are banks in which the government holds a majority stake. The State Bank of India is the largest. The number of public sector banks has changed dramatically in recent years. In a landmark consolidation effective 1 April 2020, ten public sector banks were amalgamated into four larger entities — for example, Oriental Bank of Commerce and United Bank of India were merged into Punjab National Bank, and Syndicate Bank into Canara Bank. The result is that India today has 12 public sector banks. This mega-merger is widely described as the largest reorganisation of the sector since bank nationalisation.

Private sector banks

These are banks in which private shareholders hold the majority of the equity. They are divided informally into "old" private banks (those that survived nationalisation) and "new" private banks licensed after the liberalisation of the 1990s. They are known for aggressive adoption of technology and a focus on retail banking.

Foreign banks

These are banks incorporated abroad but operating branches in India, under RBI regulation. They concentrate on trade finance, corporate banking and foreign exchange, and operate within limits the RBI prescribes.

Regional Rural Banks (RRBs)

RRBs were created under the Regional Rural Banks Act, 1976, on the recommendations of the Narasimham Working Group, to deepen credit in rural areas and serve small farmers, agricultural labourers and rural artisans. Their shareholding is jointly held by the Central Government, the State Government and a sponsor bank — remember the ratio as 50:15:35 respectively. They are a favourite of examiners precisely because this three-way ownership is distinctive.

Differentiated banks: the modern additions

A crucial recent development — and a current-affairs hotspot — is the rise of differentiated banks. Unlike universal banks that do everything, these are licensed for a narrow purpose. Both major types emerged from the recommendations of the Nachiket Mor Committee on comprehensive financial services.

Payments banks

Payments banks are designed for financial inclusion and small-value transactions. They can accept deposits and offer payments and remittance services, debit cards and net banking. The critical restriction aspirants must memorise: payments banks cannot lend — they cannot issue loans or credit cards. They may hold a maximum balance of ₹2 lakh per individual customer (raised from ₹1 lakh in 2021). They must invest their deposits largely in government securities and keep balances with the RBI.

Small finance banks

Small finance banks (SFBs) exist to serve the under-banked — small business units, small and marginal farmers, micro and small industries, and the unorganised sector. Unlike payments banks, SFBs can lend; in fact they are required to extend a large share of their credit to priority sectors and to keep a high proportion of their loans in small-ticket sizes. The simplest way to remember the contrast: payments banks move money, small finance banks lend money.

Cooperative banks

Cooperative banks operate on the principle of cooperation — "one member, one vote" — and serve small borrowers, especially in rural and semi-urban areas. They have a distinctive two-pillar regulation: they are supervised by the RBI on banking functions, while their management and registration fall under cooperative societies law. This dual control has long been a point of concern, and recent reforms have strengthened the RBI's oversight of cooperative banks.

Structurally they are tiered. Urban cooperative banks serve towns and cities. Rural cooperative credit is organised in a short-term structure — State Cooperative Banks at the top, District Central Cooperative Banks in the middle, and Primary Agricultural Credit Societies at the village base — alongside a separate long-term structure for land development credit.

Development finance institutions

Finally, standing alongside the banks are the all-India financial institutions, created to provide long-term finance that ordinary commercial banks were reluctant to offer. Keep these names and mandates ready:

• NABARD (National Bank for Agriculture and Rural Development), established in 1982 — the apex body for agricultural and rural credit, and the regulator of RRBs and cooperative banks' developmental role.
• SIDBI (Small Industries Development Bank of India), established in 1990 — the principal institution for the promotion and financing of the MSME sector.
• EXIM Bank (Export-Import Bank of India), established in 1982 — the apex institution for financing and promoting India's foreign trade.
• NaBFID (National Bank for Financing Infrastructure and Development), a newer development finance institution set up to fund long-gestation infrastructure projects.

The whole system at a glance

Here is the structure compressed into a single table you can revise in under a minute:

A short history worth knowing

A few milestones recur in questions and add weight to mains answers. The Imperial Bank of India was transformed into the State Bank of India in 1955. The watershed event, however, was bank nationalisation: 14 major commercial banks were nationalised on 19 July 1969, followed by 6 more in 1980. The stated aim was to align banking with social objectives — spreading branches to rural India, channelling credit to agriculture and priority sectors, and reducing the concentration of economic power.

The next turning point came with the economic reforms of 1991 and the Narasimham Committee reports, which recommended liberalising entry, improving capital adequacy, reducing the statutory pre-emption of bank funds, and cleaning up bank balance sheets. The story since then — new private banks, prudential norms, the NPA clean-up, the Insolvency and Bankruptcy Code, and the 2020 mega-mergers — is essentially the working-out of that reform agenda. When you write a mains answer, this arc from social banking (1969) to prudential banking (1991 onward) is the narrative that impresses examiners.

How to study this topic for UPSC

Do not learn banking as a flat list of facts. Learn it as the tree you have just read — apex, then the scheduled/non-scheduled split, then the branches. Once the tree is in your head, every news item slots neatly onto a branch: a merger is a public-sector story, a new licence is usually a differentiated-bank story, an NPA report is a commercial-bank story.

Pair the static structure here with the moving parts: the instruments of monetary policy, the meaning of CRR and SLR, and the NPA framework. If you have not yet, study our companion posts on non-performing assets and monetary policy to complete the picture. Then test yourself relentlessly — the facts in this chapter (dates, ratios, which bank can lend) are exactly the kind that fade without active recall. A few MCQs a day on banking will cement this far better than re-reading.