15.3 Banking Operations, Negotiable Instruments & KYC/AML

Key Takeaways

  • The CASA ratio measures low-cost demand deposits (Current and Savings Accounts) against total deposits, serving as a primary determinant of a bank's Net Interest Margin (NIM) and Cost of Funds.
  • Non-Resident External (NRE) accounts are rupee-denominated and freely repatriable with tax-free interest, whereas Non-Resident Ordinary (NRO) accounts hold domestic income subject to Tax Deducted at Source (TDS) and repatriation caps of USD 1 million per financial year.
  • Under Section 138 of the Negotiable Instruments Act, 1881, cheque dishonor due to insufficient funds is a criminal offense punishable by imprisonment up to two years, a fine up to twice the cheque amount, or both.
  • Rule 2(1)(d) of the PML Rules defines exactly six Officially Valid Documents (OVDs) for Customer Due Diligence: Passport, Driving Licence, Proof of Aadhaar possession, Voter ID, NREGA Job Card, and NPR letter.
  • Under RBI Anti-Money Laundering (AML) mandates, banks must conduct periodic KYC refreshers every 2 years for High-Risk accounts, every 8 years for Medium-Risk accounts, and every 10 years for Low-Risk accounts.
Last updated: September 2026

15.3 Banking Operations, Negotiable Instruments & KYC/AML

Daily branch banking operations require Junior Associates to navigate deposit product rules, cross-border remittance mechanisms, the legal duties governing negotiable instruments, and strict statutory anti-money laundering compliance. Mastery of these operational frameworks is critical for both the SBI Clerk Main Examination and day-to-day front-line branch administration.


Deposit Architecture & Core Banking Operations

Commercial bank deposits represent the liabilities side of a bank balance sheet and are legally categorized into Demand Liabilities and Time Liabilities under the Banking Regulation Act, 1949.

1. Demand Deposits (Demand Liabilities)

  • Current Account: Maintained by commercial entities, partnerships, companies, and traders who conduct high transaction volumes. Current accounts do not earn interest (as mandated by RBI Master Directions; an exception exists for balances held by deceased depositors). Overdraft facilities are permitted upon approved sanction limits.
  • Savings Bank (SB) Account: Designed to encourage thrift among individuals and non-profit institutions. Interest rates were deregulated by the RBI in October 2011; banks compute interest on a daily product basis and credit interest periodically (quarterly or monthly).
  • The CASA Metric: CASA Ratio=Current Account Deposits+Savings Account DepositsTotal Deposits×100\text{CASA Ratio} = \frac{\text{Current Account Deposits} + \text{Savings Account Deposits}}{\text{Total Deposits}} \times 100 Because Current Accounts pay 0% interest and Savings Accounts pay nominal interest rates, CASA deposits represent low-cost funds. A bank with an elevated CASA ratio enjoys a suppressed Cost of Funds (CoF), which expands its Net Interest Margin (NIM): NIM=Total Interest EarnedTotal Interest ExpendedAverage Total Earning Assets\text{NIM} = \frac{\text{Total Interest Earned} - \text{Total Interest Expended}}{\text{Average Total Earning Assets}}

2. Term Deposits (Time Liabilities)

  • Fixed Deposit (FD): A lump-sum deposit contracted for a fixed tenure ranging from 7 days to 10 years. Premature withdrawal is permitted subject to a penal rate cut (typically 0.50% to 1.00% below the applicable rate for the period run).
  • Recurring Deposit (RD): A disciplined savings facility requiring regular monthly deposits over a tenure of up to 10 years (the minimum tenure is set by each bank), with interest typically compounded quarterly.
  • Tax-Saver Fixed Deposit: A 5-year lock-in term deposit qualifying for the Rs. 1,50,000 annual deduction available under the old tax regime (Section 80C of the Income-tax Act, 1961, carried into Section 123 of the Income-tax Act, 2025 from April 1, 2026). No premature withdrawal or loan-against-deposit is permitted.

3. Specialized Non-Resident Accounts

Account TypeCurrency DenominationRepatriability of FundsTax Status in IndiaKey Purpose
NRE (Non-Resident External)Indian Rupees (INR)Freely Repatriable (Principal & Interest)Interest exempt from income taxRemitting foreign earnings to India
NRO (Non-Resident Ordinary)Indian Rupees (INR)Restricted to USD 1 Million / FYSubject to TDS (Up to 30% + cess)Managing domestic income (rent, dividends)
FCNR(B) (Foreign Currency Non-Resident)Foreign Currencies (USD, GBP, EUR, JPY)Freely Repatriable (Principal & Interest)Interest exempt from income tax while non-residentTerm deposit (1 to 5 yrs); Zero FX risk

Negotiable Instruments Act, 1881

The Negotiable Instruments Act, 1881 (NI Act) provides the statutory backbone for commercial payments. Under Section 13, a negotiable instrument is defined as a "promissory note, bill of exchange or cheque payable either to order or to bearer."

1. The Triad of Instruments

  • Promissory Note (Section 4): An instrument in writing containing an unconditional undertaking, signed by the maker, to pay a certain sum of money only to, or to the order of, a certain person, or to the bearer. It involves two parties: the Maker and the Payee. (Note: Under Section 31 of the RBI Act, 1934, only the RBI or the Central Government can issue demand promissory notes payable to bearer, which constitute currency notes).
  • Bill of Exchange (Section 5): An unconditional order in writing, signed by the maker (Drawer), directing a person (Drawee/Acceptor) to pay a certain sum of money only to, or to the order of, a certain person (Payee). It involves three parties: Drawer, Drawee, and Payee.
  • Cheque (Section 6): A bill of exchange drawn on a specified banker and payable strictly on demand. It includes electronic images of truncated cheques and cheques in electronic form.

2. Typology and Crossing of Cheques

  • Bearer Cheque: Payable to whoever presents the instrument at the counter. Transferable by mere physical delivery without endorsement.
  • Order Cheque: Payable to a specified payee or their order. Transferable only through endorsement (signature on reverse) and delivery.
  • General Crossing (Section 123): Two parallel transverse lines drawn across the face of the cheque, with or without "& Company" or "Not Negotiable". Payment can only be disbursed through a bank account, never across the cash counter.
  • Special Crossing (Section 124): The name of a specific collecting banker is written between the transverse lines. Payment can be collected only by that specified banker.
  • Account Payee Crossing: A restrictive direction directing that the proceeds must be credited exclusively to the named payee's account, nullifying negotiability.
  • Stale Cheque: A cheque presented after the expiry of its validity window. Effective April 1, 2012, the validity period of all cheques in India was reduced by the RBI from six months to three months (90 days) from the date of the instrument.
  • Post-Dated Cheque: Bears a date in the future; cannot be honored before that date.
  • Ante-Dated Cheque: Bears a date prior to the date of issue; fully valid provided it is presented within three months from its face date.
  • Mutilated Cheque: A cheque torn, damaged, or defaced in material parts (signature, amount, date), requiring drawer confirmation before clearance.

3. Modern Processing & The Positive Pay System

  • CTS-2010 Standards: Cheque Truncation System benchmarks mandated by RBI and NPCI requiring standardized magnetic ink, paper watermark, VOID pantograph, uniform dimensions, and resistance to chemical alterations.
  • Positive Pay System (PPS): Introduced by the RBI in January 2021. For cheques amounting to Rs. 50,000 and above (mandated at bank discretion for Rs. 5 lakh and above), the issuer reconfirms critical details (cheque number, date, payee name, account number, amount) through internet/mobile banking before presenting it for clearing.

4. Criminal Liability for Cheque Dishonor (Section 138)

To protect commercial trust, the NI Act treats cheque bounces due to insufficient funds as a criminal offense:

  • Penal Consequences: Imprisonment for a term extending up to two years, or with a fine extending to twice the amount of the cheque, or both.
  • Statutory Enforcement Timeline:
    1. The cheque must be presented within its 3-month validity period.
    2. Upon receiving the bank's return memo showing dishonor, the payee must dispatch a written legal demand notice within 30 days.
    3. The drawer is granted a 15-day grace period from the receipt of the notice to settle the unpaid amount.
    4. If the drawer fails to pay within 15 days, the cause of action arises, and the payee must file a formal complaint before the Judicial Magistrate / Metropolitan Magistrate within 30 days thereafter.

KYC Norms & Anti-Money Laundering (AML) Compliance

Banks are frontline gatekeepers against money laundering and terror financing under the Prevention of Money Laundering Act, 2002 (PMLA) and the RBI Master Direction on KYC (2016).

1. Officially Valid Documents (OVDs)

Under Rule 2(1)(d) of the PML Rules, 2005, exactly six documents are recognized as Officially Valid Documents for customer identification and address verification:

  1. Passport
  2. Driving Licence
  3. Proof of possession of Aadhaar number (with the Aadhaar number redacted/masked)
  4. Voter's Identity Card issued by the Election Commission of India
  5. Job card issued by NREGA duly signed by an officer of the State Government
  6. Letter issued by the National Population Register (NPR) containing details of name and address

[!WARNING] Common Exam Trap: While a PAN Card is mandatory for financial tracking under Section 139A of the Income Tax Act (or Form 60 in its absence), a PAN Card lacks an address and therefore cannot serve as independent address proof. A Ration Card is NOT an OVD under the PML Rules.

2. Risk Categorization & Re-KYC Periodicity

Banks must categorize customer profiles into risk strata based on customer identity, social status, business turnover, and geographical jurisdiction:

  • High-Risk Customers: Re-KYC required every 2 years (e.g., Politically Exposed Persons [PEPs], non-resident entities, high-net-worth individuals, trust/charity accounts, cash-intensive merchants, bullion dealers).
  • Medium-Risk Customers: Re-KYC required every 8 years (e.g., small and medium enterprises, retail merchants, clients with moderate turnover).
  • Low-Risk Customers: Re-KYC required every 10 years (e.g., salaried individuals with verifiable employers, government employees, pensioners, rural agriculturalists).

3. Statutory Reporting to FIU-IND

Banks report transactions to the Financial Intelligence Unit - India (FIU-IND) under statutory reporting rules:

  • Cash Transaction Report (CTR): Mandatory for all cash transactions exceeding Rs. 10 Lakh (or its foreign currency equivalent) or a series of integrally connected cash transactions exceeding Rs. 10 Lakh in a single calendar month. Submitted by the 15th day of the succeeding month.
  • Suspicious Transaction Report (STR): Mandatory for any transaction—regardless of amount—that gives rise to suspicion of being proceeds of crime or terror financing. Must be submitted within 7 working days of the Principal Officer arriving at a conclusion of suspicion.
  • Counterfeit Currency Report (CCR): All detected counterfeit bank notes reported by the 15th day of the succeeding month.
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Cheque Clearing, PPS & Section 138 Enforcement Workflow
Test Your Knowledge

Under Section 138 of the Negotiable Instruments Act, 1881, what is the statutory time window available to the payee to issue a written demand notice after receiving the bank's return memo regarding a dishonored cheque?

A
B
C
D
Test Your Knowledge

Which of the following is recognized as an Officially Valid Document (OVD) for Customer Due Diligence under Rule 2(1)(d) of the Prevention of Money-Laundering Rules, 2005?

A
B
C
D
Test Your Knowledge

What is the mandatory re-KYC (periodic KYC updation) frequency prescribed by the Reserve Bank of India for customer accounts classified under High Risk, Medium Risk, and Low Risk categories respectively?

A
B
C
D