Topic 2: DEBT: YIELD ASSAULT

March 2026 was a difficult month for Indian debt markets, with higher yields and softer prices across most segments as a confluence of external shocks and domestic structural pressures overwhelmed the RBI's earlier liquidity support measures. From government securities to corporate bonds, the broad message from the fixed income market was consistent: the cost of borrowing was moving up, and the rate cut narrative that had animated markets earlier in the fiscal year was losing conviction fast.

The benchmark 10-year government securities yield told the clearest story, rising to approximately 7.00% by 30 March 2026 — up roughly 32 basis points over the month and about 42 basis points higher than a year ago. This was a meaningful move, reflecting a genuine repricing of inflation risk and term premiums rather than a technical blip. Shorter-dated instruments were relatively more insulated, with RBI's liquidity operations helping cap the worst of the selling at the short end, but longer-duration bonds took the brunt of the pressure. State Development Loans tracked the G-Sec move closely, with yields in the 6.6–7.8% band across the 3 to 30-year maturity spectrum, and spreads over central government bonds widening as investors demanded additional compensation for fiscal and geopolitical uncertainty at the state level.

The dominant external driver was, of course, the West Asia conflict and its most immediate market consequence — Brent crude crossing $100 per barrel. For India, a country that imports roughly 85% of its crude oil requirements, a three-digit oil price is not just an energy story; it is simultaneously an inflation story, a current account story, and a currency story. Markets moved quickly to price in all three dimensions. Higher crude threatened to push CPI inflation — already nudging up to around 3.2% in February 2026 from earlier lows — further toward the upper bound of the RBI's comfort zone. This effectively closed the window on meaningful near-term rate cuts that bond markets had been partially pricing in, forcing a broad yield curve adjustment, particularly beyond the 3 to 5-year segment where rate cut expectations had been most aggressively embedded. Domestically, the debt market was grappling with a supply problem that predated the geopolitical shock. The central government had announced gross G-Sec borrowing of ₹17.2 lakh crore for FY2027 — above market expectations — and states had front-loaded their own borrowing calendars aggressively in the January to March quarter, adding approximately ₹5 trillion of net supply. This volume of paper hitting the market simultaneously kept yields structurally elevated, regardless of RBI's compensating measures. The fiscal deficit for FY2025-26 was revised to approximately 4.5% of GDP, marginally above the original 4.4% target, and the central government's debt-to-GDP ratio was estimated to have risen to around 57% for FY26 — numbers that reinforced the market's view that India would need to issue substantial fresh debt for several years to come, keeping term premiums firm at the long end.

The RBI was not passive. It had already injected significant liquidity through LTROs, open market operations, and repo channel easing in the preceding months, and continued to provide support via buying in the "Others" category during March. This helped prevent a disorderly spike, particularly at the short end — T-bill yields cleared in the 5.3–5.6% range, while OIS and MIBOR-linked rates remained well below their peak liquidity-tight phase levels. However, the incremental demand generated by RBI operations was simply insufficient to offset the heavy supply pressure and the repricing of long-end risk, leaving the yield curve biased higher on balance.

In the corporate bond space, March saw the highest issuance volumes in eleven months, with around ₹990 billion raised — a sign that corporates rushed to lock in funding ahead of fiscal year-end. But the pricing told a less comfortable story: spreads over G-Secs widened to above 80 basis points from an earlier 50–60 basis point range, as risk premiums for credit expanded in line with the geopolitical and inflation backdrop. Major public sector banks including SBI, Bank of Baroda, Indian Bank, and Union Bank issued 7 to 10-year paper at yields in the 7.1–7.2% band — meaningfully higher than equivalent issuances earlier in the fiscal year.

For debt mutual fund investors, the month delivered a sobering reality check. Longer-duration G-Sec funds reported flat to negative returns as underlying bond prices fell in tandem with rising yields. Short-duration and liquid fund investors fared better, sheltered by RBI's short-end support and the relative stability of T-bill rates. There was some rotation out of equity products — hit hard by the West Asia-driven equity market sell-off — into high-quality investment-grade debt, but this incremental demand was not enough to reverse the prevailing yield-up trend.