Key Terms & Concepts — UPSC Mains
D-SIB
"Banks designated by the RBI as too-big-to-fail due to their critical importance to India's financial system — currently SBI, HDFC Bank, and ICICI Bank"
Domestic Systemically Important Banks (D-SIBs) are banks designated by the Reserve Bank of India (RBI) as being of critical systemic importance to India's financial system — informally described as 'too-big-to-fail' institutions. The RBI first issued the D-SIB framework in 2014, based on the Financial Stability Board's (FSB) global framework for Global Systemically Important Banks (G-SIBs). Banks are assessed annually on criteria including size (total assets), interconnectedness (cross-holdings with other financial institutions), substitutability (whether their services can be replaced), and complexity (range and sophistication of financial products). D-SIBs are placed in buckets based on systemic importance score, with higher buckets attracting higher additional Common Equity Tier 1 (CET1) capital surcharges. As of 2025, three banks are designated D-SIBs: SBI (Bucket 3), ICICI Bank (Bucket 1), and HDFC Bank (Bucket 1). D-SIBs face stricter regulatory and supervisory requirements — including enhanced capital buffers, greater disclosure requirements, and more intensive RBI oversight — precisely because their failure could trigger a systemic financial crisis.
D-SIBs are a key GS3 (banking regulation, financial stability) and GS2 (regulatory institutions) topic. The concept connects to Basel III capital requirements, the 2008 global financial crisis, and RBI's prudential regulation. For Mains, the HDFC Bank-RBI governance episode (2026) is a direct application: HDFC Bank's designation as D-SIB means any governance failure — such as the ₹45 crore paid as 'differential interest' in violation of RBI deposit-rate norms — carries systemic risk implications, justifying enhanced RBI scrutiny.
- 1 D-SIB framework issued by RBI in 2014; assessed annually
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- 4 Higher bucket = higher additional CET1 (Common Equity Tier 1) capital surcharge requirement
- 5 D-SIBs face enhanced disclosure, stricter capital norms, and more intensive RBI supervision
- 6 Based on Financial Stability Board (FSB) G-SIB framework — India's domestic adaptation
- 7 D-SIB failure could trigger systemic financial instability — hence the 'too-big-to-fail' label
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When RBI placed HDFC Bank under closer scrutiny in 2021 following technology outages and later in 2026 following a governance probe, the enhanced oversight was partly justified by HDFC Bank's D-SIB status — a governance or financial failure at India's largest private bank would ripple through the entire banking system given its ~₹35 lakh crore balance sheet and millions of interconnected counterparties.
