Finance Technology

🎯 PYQs — Fintech (High Frequency)

Most Asked Topics:

• CBDC vs Private Cryptocurrencies
• UPI ecosystem and features
• Stablecoins and Blockchain
• Payment settlement systems (RTGS, NEFT)

Common Traps:

• ❌ e-RUPI is NOT the same as Digital Rupee (e-RUPI is a voucher; Digital Rupee is currency)
• ❌ UPI transactions are NOT settled via NEFT (they use the IMPS rail)
• ❌ Stablecoins are NOT risk-free (algorithmic versions like TerraUSD can collapse)

0. Blockchain Basics

Blockchain Fundamentals

Cue Words	Notes
Define blockchain and its core properties.	Blockchain: A decentralized, distributed digital ledger that records transactions across multiple computers (nodes) in cryptographically linked "blocks," such that no single block can be altered without altering all subsequent blocks. Core Properties: Decentralization (no single controlling authority), Immutability (records cannot be retroactively changed), Transparency (visible to all participants), and Consensus-based validation.
Differentiate Public, Private, and Permissioned/Consortium blockchains.	Types of Blockchain: Public Blockchain: Open to anyone to join, view, and validate (e.g., Bitcoin, Ethereum). Private Blockchain: Controlled by a single organization; access is restricted (e.g., a bank's internal ledger). Permissioned/Consortium Blockchain: Controlled by a select group of organizations rather than one entity or the public.
Explain Proof of Work vs Proof of Stake consensus mechanisms.	Consensus Mechanisms: Proof of Work (PoW): Miners compete to solve complex computational puzzles to validate transactions (used by Bitcoin); energy-intensive. Proof of Stake (PoS): Validators are chosen to confirm transactions based on the amount of cryptocurrency they "stake" as collateral (used by Ethereum post-2022 "Merge"); far less energy-intensive.
What is a Smart Contract?	Smart Contract: Self-executing code stored on a blockchain that automatically enforces and executes the terms of an agreement when pre-defined conditions are met, without intermediaries.

1. Crypto Assets & Regulation

Types of Stablecoins

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Compare the three types of Stablecoins: Fiat-Collateralized, Crypto-Collateralized, and Algorithmic.

Types of Stablecoins: Fiat-Collateralized: Backed by reserves of fiat currency (USD/EUR). Examples: Tether (USDT), USDC. Crypto-Collateralized: Backed by other cryptocurrencies (typically over-collateralized). Examples: DAI. Algorithmic: Price maintained by supply-control algorithms. Examples: TerraUSD (Collapsed). Risks: Run risk (mass withdrawal), lack of elasticity, and reserve transparency issues.

Regulation in India

Cue Words	Notes
Detail crypto asset regulation in India and the global context.	India's Regulatory Framework: Taxation (2022): 30% tax on gains from Virtual Digital Assets (VDAs). No set-off of losses allowed. PMLA (2023): VDAs brought under the Prevention of Money Laundering Act, requiring intermediaries to follow KYC and reporting norms. Global Context: The EU's MiCA (Markets in Crypto-Assets) is the world's first comprehensive regulatory framework.

2. Central Bank Digital Currency (e₹)

Digital Rupee (e-Rupee)

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Define the Digital Rupee (e-Rupee) and contrast its Retail and Wholesale forms.

Digital Rupee (e-Rupee): Digital form of sovereign currency issued by the RBI; a direct liability of the central bank. Key Features: Legal tender status (guaranteed by government), settlement finality (like physical cash, no intermediary risk), and programmability for specific intended use. Types: Retail (e₹-R): For the general public and merchant transactions. Wholesale (e₹-W): For interbank and securities settlement.

e-RUPI: Purpose-Specific Voucher

Cue Words	Notes
What is e-RUPI, who developed it, and how does it prevent leakage?	e-RUPI: Contactless, cashless digital voucher delivered via SMS or QR code. Developed by NPCI on the UPI rails. Core Benefits: Accessibility: Can be redeemed on feature phones without a bank account or internet. Targeted Delivery: Purpose-specific (e.g., vaccine or fertilizer subsidy), ensuring zero leakage. Limit: ₹1,00,000 per voucher; allows multiple uses until exhausted.

3. Digital Payments Ecosystem

Settlement Infrastructure

Cue Words	Notes
Compare IMPS, NEFT, and RTGS on settlement, netting, value limits, and operators.	Payment Settlement Systems: IMPS: Real-time settlement; Gross netting; Value limit up to ₹5 Lakh; Operated by NPCI; 24/7 availability. NEFT: Half-hourly batch settlement; Net (DNS) netting; No value limit; Operated by RBI; 24/7 availability. RTGS: Real-time settlement; Gross netting; Minimum value ₹2 Lakh (no max); Operated by RBI; 24/7 availability.

Unified Payments Interface (UPI)

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Outline UPI: architecture, security, UPI 2.0 features, offline tools, and international adoption.

UPI Architecture & Security: Real-time system built on IMPS rails, secured by 3-factor authentication (Device ID, Bank account, UPI PIN). UPI 2.0 Features: Overdraft account linking, AutoPay (recurring payments), and pre-authorizing mandates. Access Points: UPI Lite: On-device wallet for small-value, high-frequency offline transactions. 123PAY: Voice-based (IVR), missed call, and sound-based payments for feature phones. International Adoption: UPI One World (for tourists); used in UAE, France, Singapore, Mauritius, Sri Lanka, Nepal.

SWIFT Messaging System

Cue Words	Notes
What is SWIFT, its role, and its geopolitical significance?	SWIFT: Society for Worldwide Interbank Financial Telecommunication (Belgium). Role: Secure messaging system for instructions; does not transfer money itself. Serves 11,000+ institutions across 200+ countries. Geopolitical Use: Exclusion from SWIFT (sanctions) isolates a country's financial system from international trade.

4. Fintech Regulatory Architecture

Key Regulatory Bodies for Fintech in India

Cue Words	Notes
Map the primary financial regulators to their fintech-relevant jurisdiction.	Sectoral Regulators: RBI: Regulates banks, NBFCs, payment systems (UPI, IMPS, NEFT, RTGS), digital lending, and the Digital Rupee (CBDC). SEBI: Regulates fintech in capital markets — robo-advisors, algorithmic trading platforms, crowdfunding, and crypto-linked securities. IRDAI: Regulates InsurTech — digital insurance distribution and underwriting platforms. PFRDA: Regulates pension-tech platforms (e.g., NPS digital onboarding). FSDC (Financial Stability and Development Council): Apex body chaired by the Finance Minister for inter-regulatory coordination on systemic risks, including fintech-related risks.
What are Regulatory Sandboxes, and which regulator pioneered fintech sandboxes in India?	Regulatory Sandbox: A controlled testing environment where fintech firms can pilot innovative products with real customers under regulatory supervision, with relaxed compliance requirements, before full-scale launch. RBI's Regulatory Sandbox: Launched in 2019; has run cohorts on themes like retail payments, cross-border payments, and MSME lending.
What is the Account Aggregator (AA) framework?	Account Aggregator (AA) Framework: An RBI-regulated, consent-based data-sharing system (under the Sahamati/DEPA architecture) that allows individuals to securely share their financial data across institutions (banks, tax, investments) with their explicit consent, without the data passing through the AA itself.

• CBDC is a digital form of sovereign currency issued by a central bank, existing only in electronic form and constituting a direct liability of the central bank.
• CBDC types: Retail CBDC (CBDC-R) for the general public via digital wallets; Wholesale CBDC (CBDC-W) for banks and financial institutions for interbank settlement.
• India's CBDC is the Digital Rupee (e-Rupee), issued by RBI, with pilot projects running for e-Rupee-Retail and e-Rupee-Wholesale.
• e-RUPI is a contactless, purpose-specific digital voucher delivered via SMS/QR code, launched in August 2021 by NPCI on the UPI ecosystem, capped at Rs 1,00,000 per voucher, and usable without a bank account.
• IMPS (Immediate Payment Service) was launched by NPCI and has been operational since 2010, offering real-time, 24x7 gross settlement of individual fund transfers.
• NEFT is a Deferred Net Settlement (DNS) system, available 24x7 since December 2019, settling transfers in half-hourly batches with no minimum or maximum transfer amount.
• RTGS is a Real Time Gross Settlement system regulated by RBI, available 24x7 since December 2020, with a minimum transaction limit of Rs 2 lakh and no upper limit.
• UPI is built on the IMPS infrastructure and secures transactions via three-factor authentication: device ID, linked bank account, and UPI PIN.
• UPI Lite is an on-device wallet for small-value, high-frequency transactions, pre-loaded from the linked bank account.
• UPI 123PAY enables digital payments on feature phones via USSD, IVR, missed-call-based payments, and proximity sound-based payments.
• UPI merchant payments are accepted abroad in UAE, France, Singapore, Bhutan, Mauritius, Nepal, and Sri Lanka; foreign tourists can use UPI via the UPI One World facility.
• SWIFT (Society for Worldwide Interbank Financial Telecommunication) is a Belgium-based cooperative that transmits secure payment instructions (not actual money) between 11,000+ institutions across 200+ countries.
• Stablecoins are cryptocurrencies pegged to a stable asset like a fiat currency; Tether (USDT) and USD Coin (USDC) are pegged to the US dollar.
• Fiat-collateralised stablecoins (e.g. USDT, USDC) are backed by fiat reserves; crypto-collateralised stablecoins (e.g. DAI) are backed by other cryptocurrencies; algorithmic stablecoins (e.g. the collapsed TerraUSD) use supply-control algorithms without collateral.
• India's Finance Act, 2022 taxes gains on Virtual Digital Assets (VDAs), including cryptocurrencies, stablecoins and NFTs, at 30%, with no loss set-off allowed.
• In 2023, Virtual Digital Assets (VDAs) were brought under India's Prevention of Money Laundering Act (PMLA), 2002.
• The EU's Markets in Crypto-Assets (MiCA) regulation is the world's first comprehensive crypto regulatory framework.
• China bans private cryptocurrencies and stablecoins, promoting its state-controlled Digital Yuan (CBDC) instead.