WHAT IS MONEY SUPPLY?

The money supply in India refers to the total amount of money available in the economy at a given time, encompassing various forms of currency and deposits that can be used for transactions, savings, or investments. It is a critical economic indicator monitored and managed by the Reserve Bank of India (RBI) to influence inflation, economic growth, and financial stability.

The money supply is measured through monetary aggregates (M0, M1, M2, M3, and sometimes M4), which categorize money based on liquidity and usage.

MONETARY AGRREGATES

Monetary aggregates in India are measures of the money supply used by the Reserve Bank of India (RBI) to monitor and manage the amount of money circulating in the economy. These aggregates help track liquidity, guide monetary policy, and assess economic activity. 

They are categorized into narrow money (highly liquid) and broad money (less liquid), reflecting different components of money like currency, demand deposits, and time deposits. 

Monetary Aggregates in India

The RBI defines four main monetary aggregates: M0, M1, M2, M3, and occasionally M4 (though M4 is less commonly used). These are based on the New Monetary Aggregates framework adopted in 1977 and revised periodically, with data published weekly and monthly in the RBI’s Monetary Policy Reports and Weekly Statistical Supplement.

M0 (Reserve Money or Monetary Base)

1. Definition: The most liquid measure, representing the total monetary liabilities of the RBI, including currency in circulation and bankers’ deposits with the RBI.
2. Components:
   1. Currency in circulation (notes and coins held by the public and banks).
   2. Cash reserves held by commercial banks with the RBI (e.g., under the Cash Reserve Ratio (CRR), ~4.5% in 2025).
   3. Other deposits with the RBI (e.g., from financial institutions).
3. Significance: M0 is controlled directly by the RBI and serves as the base for money creation through the money multiplier effect. It reflects the RBI’s monetary policy stance .
4. Example (2025): As of March 2025, M0 was approximately ₹35 lakh crore, driven by currency demand and CRR requirements (based on RBI data trends).

M1 (Narrow Money)

1. Definition: It includes the money in circulation and demand deposits in the banking system. A measure of highly liquid money available for immediate transactions.
2. Components:
   1. M0 (currency in circulation + bankers’ deposits with RBI).
   2. Demand deposits with commercial banks (e.g., current and savings accounts, withdrawable on demand).
   3. Other deposits with the RBI (e.g., from non-banking entities).
3. Formula: M1 = {Currency with the public} + {Demand deposits with banks} + {Other deposits with RBI}
4. Significance: M1 reflects money readily available for spending, influencing inflation and consumer demand. It’s closely monitored for short-term liquidity management.
5. Example (2025): M1 was around ₹60 lakh crore in March 2025, boosted by digital payment growth (e.g., UPI transactions).

M2

1. Definition : It includes M1, saving deposits, and time deposits with the post office saving banks. It is a slightly broader measure than M1, including short-term savings.
2. Components:
   1. M1.
   2. Post office savings bank deposits (e.g., savings accounts with India Post).
3. Formula: M2 = M1 + {Post office savings deposits}
4. Significance: M2 captures money accessible with minimal delay, relevant for assessing savings behavior in rural and semi-urban areas. Post office deposits are significant in India due to their reach in underserved regions.
5. Example (2025): M2 is less commonly reported but estimated at ₹62 lakh crore, reflecting the inclusion of post office savings.

M3 (Broad Money)

1. Definition: It includes M1 plus time deposits with commercial banks. The most widely used measure of money supply, encompassing M1 plus longer-term deposits.
2. Components:
   1. M1.
   2. Time deposits with banks (e.g., fixed deposits, recurring deposits).
3. Formula: M3 = M1 + {Time deposits with banks}
4. Significance: M3 reflects the total money supply available for economic activity, including savings and investments. It’s a key indicator for monetary policy, influencing credit growth and inflation. The RBI targets M3 growth to align with GDP growth and inflation targets (~4–6% CPI in 2025).
5. Example (2025): M3 was approximately ₹230 lakh crore in March 2025, driven by robust deposit growth in banks (RBI data).
6. M3 Breakdown (March 2025, indicative):

• Currency with public: ₹30 lakh crore.
• Demand deposits: ₹28 lakh crore.
• Time deposits: ₹172 lakh crore.
• Total M3: ₹230 lakh crore.

M4 (Extended Broad Money)

1. Definition: A broader but less frequently used measure, including M3 plus post office savings schemes.
2. Components
   1. M3
   2. Total post office deposits (e.g., National Savings Certificates, Kisan Vikas Patra).
3. Formula: M4 = M3 + {Total post office deposits}
4. Significance: M4 accounts for long-term savings in post office schemes, relevant for financial inclusion in rural areas. It’s less critical for monetary policy due to its illiquid nature.
5. Example (2025): M4 is estimated at ₹235 lakh crore, though rarely reported separately.

Key Features and Trends (2025)

1. The RBI publishes monetary aggregates weekly (every Friday) and monthly, with M3 being the primary focus for policy analysis.
2. Growth Rates (2025):
   1. M0 growth: ~5–7% annually, driven by currency demand and digital payment infrastructure reducing cash reliance.
   2. M3 growth: ~8–10% in FY25, reflecting credit expansion and deposit growth, aligned with nominal GDP growth (~10–12%).
3. Digital Impact: The rise of digital payments (e.g., UPI transactions exceeding ₹20 lakh crore monthly in 2025) has reduced currency in circulation’s share in M1, with demand deposits growing significantly.
4. Policy Context: The RBI uses monetary aggregates to calibrate tools like the repo rate (6.5%), CRR (4.5%), and Statutory Liquidity Ratio (SLR, 18%) to manage liquidity and inflation.

Significance

1. Monetary Policy: M3 growth is a key indicator for the RBI’s Monetary Policy Committee (MPC) to assess liquidity and adjust policy rates. Excess M3 growth can fuel inflation, while low growth may signal economic slowdown.
2. Economic Activity: M1 reflects immediate spending capacity, while M3 indicates broader investment and savings trends, critical for sectors like manufacturing (e.g., tied to CII’s land reform goals).
3. Financial Inclusion: M2 and M4, incorporating post office deposits, highlight savings access in rural areas, supporting RBI’s Financial Inclusion Index goals.
4. Stability: Monitoring M0 ensures the RBI maintains control over the monetary base, preventing systemic risks.
5. A 10% M3 growth supports credit for manufacturing (e.g., CII’s industrial corridors), but the RBI may raise the repo rate if inflation exceeds 6%.