Indian government bonds have fallen for eight straight weeks, and the cause is not the one in Monday’s headlines. Retail inflation jumped to 5.54% in September from 4.83% in August, the statistics ministry said at 4 pm on Monday, with food prices up 7.74%. By then the damage was done. The 10-year yield had climbed from 7.02% on 23 September to 7.29% on Friday, part of a rise of 0.54 of a point over eight weeks by Reuters’s count, and it ended Monday at 7.37%. Monday’s move came early: by 10:20 that morning, more than five hours before the release, the benchmark 2036 bond had already gone from Friday’s 7.30% to 7.37%, Reuters reported. It closed at 7.39%. At least three-quarters of the last three weeks’ rise came before the number was public.
The central bank moved first
What moved the market was the central bank. It has been a seller of bonds: its own results show three sale auctions in September, on the 17th, 21st and 28th, and Reuters put the month’s sales at ₹1 trillion. On 7 October it raised its policy rate to 5.50% from 5.25%, its first increase in nearly four years; at that meeting it announced no drain of liquidity, and the governor called the surge in surplus cash temporary, according to press reports. Two days later it drained. On Friday it announced a fourth sale, ₹25,000 crore of government bonds for today, six securities maturing between 2030 and 2034, and the same day, press reports say, it told banks to keep 99% of their required cash reserve every day from 16 October, up from 90%. Measures to steady the rupee followed on Saturday. The three-week rise of 0.35 of a point splits accordingly: a little over half came before the policy meeting, about a fifth between the rate rise and Friday, and a quarter, 0.09 of a point, on Monday alone, the first session after the drain was announced and the bonds’ worst day in more than six months by Reuters’s count. Overnight money shows the bite. The weighted average call rate rose to 5.41% on Monday from 5.31% on Friday, by the central bank’s own count.
Timing is the strong evidence
The evidence is strongest on timing and thinner elsewhere. Yields have been rising abroad as well: since late August the 10-year US Treasury yield is up 0.51 of a point, more than India’s 0.38 to Friday. But the two have not moved together. Of the 23 daily changes on record, they went the same way on only 10, and in the three weeks in question India’s yield rose 0.26 while America’s rose 0.13; at five years the American yield rose 0.03 and India’s 0.26. That suggests, without proving, that this leg is home-made. At home the picture is plain. All 21 central government bonds that traded on both 23 September and Monday fell in price. The middle fall was 2.3%. Paper maturing within five years lost 1.4%; paper beyond ten years lost 2.5%. The most traded bond, the 6.94% of 2036, went from 99.265 to 96.97, about four months of its interest.
The loss lands at home
The loss lands at home, and not on those who are selling. Foreign investors own 3% of central government bonds, by the central bank’s own ownership table for June. Mutual funds, which sold a net ₹5,100 crore in the three sessions after the rate rise, according to reports, hold 1.7%. Banks hold 33% and insurers 26%, which is 59% between them; the central bank itself holds 17%, pension and provident funds 9%. The cost of the central bank’s tightening, for prices and now for the currency, is carried by Indian banks, insurers and retirement savings. Jefferies, a brokerage, says lenders may be able to pass the cost of the reserve rule on to borrowers. No published number yet shows whether they have.
What inflation changes
Inflation’s part is different, and it has barely begun. Monday’s number came late in the trading day, and it beat the 5.40% that a Reuters poll expected by 0.14 of a point, a modest surprise. What it has already done is remove the margin of safety. On Friday the 10-year yield stood 2.47 points above the inflation rate then published. On Monday the gap was 1.83. The policy rate, at 5.50%, is now below inflation at 5.54%. A central bank that tightened to get ahead of prices finds that prices have caught up with its rate.
That is the uncomfortable reading of the evidence: Indian bonds have been paying for the central bank’s own tightening, and since Friday for the rupee as well, and inflation has just made the bill harder to call temporary. Three dated tests follow. Today’s sale shows at what yield buyers stand. Wholesale inflation is due tomorrow. The daily cash rule begins on 16 October. If yields ease while the drain stays in place, the drain was not what drove Monday’s fall. Until then, the numbers say it was.
Data note: Inflation figures are from the statistics ministry’s release of 12 October 2026, with August as revised there; the gap over inflation on Friday uses the August figure then published, 4.82%. The 10-year yield is the clearing house’s indicative yield for 9 to 10 years. The benchmark bond’s closing yields and all bond prices are last traded figures, for the 21 central government securities that traded on both 23 September and 12 October; the middle fall is their median. The policy rate, the bond sale, the September auctions, the Saturday measures and the call rate are from the Reserve Bank of India’s own statement, announcements and money market releases; the reserve rule is as reported. Ownership shares are from the Reserve Bank’s Bulletin table for June 2026. The morning yield, the eight weeks, September’s sales, the mutual funds’ sales and the poll are as reported by Reuters. The US yields are the Treasury’s daily par yields to 9 October. Corrected on 13 October 2026: an earlier version attributed the figure for September’s sales to fund managers; it is Reuters’s own.
Institutional perspective: For holders of government paper, the readings to set against Monday’s fall are the cut-off yields of today’s sale, tomorrow’s wholesale inflation and the first fortnight under the daily cash rule from 16 October. For lenders and their borrowers the open question is how much of dearer overnight money reaches loan rates; no published figure shows it yet.
