The Reserve Bank of India told scheduled banks on October 9 that the minimum daily cash reserve ratio cushion drops from ninety percent to a near-full match: lenders must keep at least ninety-nine percent of the prescribed CRR on every day of the reporting fortnight that begins October 16, a technical change that removes the week-on, week-off slack treasurers relied on when system liquidity was flush.

What notification 290 actually changes

India’s statutory CRR remains at four percent of net demand and time liabilities, meaning roughly four rupees of every hundred in deposits still sit with the RBI without interest. What changes is the daily band. Under the old rule, a bank could run as low as ninety percent of that requirement on individual days so long as the fortnightly average still cleared the full prescribed level. Treasury teams often parked extra balances only in the second half of the fortnight, using the first week to deploy cash in the call money market or short-dated government securities.

Notification RBI/2026-27/290, signed by Chief General Manager Manoranjan Padhy, says the review of liquidity conditions warrants lifting the daily floor to ninety-nine percent. The language is dry, but the operational impact is immediate: starting with the fortnight that opens Thursday, banks must hold almost the entire CRR amount at the central bank every single day, while still meeting the average requirement over fifteen days.

Why the RBI moved now

The timing sits inside a broader tightening cycle. Governor Sanjay Malhotra’s Monetary Policy Committee raised the repo rate by twenty-five basis points to 5.50 percent on October 7 and shifted guidance toward calibrated tightening, citing sticky inflation and pressure on the rupee after oil prices spiked on Middle East shipping disruptions. Separately, the RBI has been draining surplus liquidity through variable-rate reverse repo auctions and open-market sales of government bonds, including a twenty-five-thousand-crore rupee OMO sell announced for mid-October.

Bankers quoted in market reports said system liquidity still showed a surplus in the high three-lakh-crore rupee range in early October, swollen in part by foreign-currency non-resident deposit mobilisation and month-end government spending. Tightening the daily CRR band is a way to pin more of that cash at the RBI without announcing a headline increase in the four percent ratio, which Malhotra had previously described as a last-resort tool.

Costs for lenders and borrowers

IDFC First Bank chief economist Gaura Sengupta told reporters the shift is unlikely to drain liquidity on its own because the statutory ratio is unchanged, but it limits the intra-fortnight games treasurers play. Jana Small Finance Bank’s Gopal Tripathi noted teams will need to keep balances closer to one hundred percent every day, reducing flexibility to earn a few basis points in overnight markets. For corporate borrowers, the effect is indirect: tighter daily liquidity can push up short-term funding costs ahead of the next MPC decision, even if the repo rate holds.

State-run banks with large government deposit inflows may feel the pinch first, because their CRR bases move quickly when salary and pension credits land. Private lenders with more stable retail deposits could adapt by holding slightly higher precautionary balances, which shows up as lower securities-trading income in quarterly results rather than a single dramatic headline.

What to watch through Diwali

Treasurers will track whether the RBI pairs the CRR tweak with more OMO sales or changes to the standing deposit facility corridor. Bond traders are already watching the ten-year yield near multi-year highs; any sign that banks are scrambling for cash could widen swap spreads. For the India edition’s business readers, the practical stake is funding: working-capital lines priced off the repo or MCLR may reprice faster when liquidity rules bite daily rather than fortnightly averages.

Market chatter from Mumbai dealing rooms

Overnight index swaps moved wider after the notification, reflecting expectations that banks will park more cash at the RBI even if the headline CRR ratio stays at four percent. Dealers said smaller finance companies that rely on bank lines may see marginal increases in short-term borrowing quotes as treasurers hoard liquidity into the Diwali fortnight.

Mutual fund houses with large liquid schemes told investors they are monitoring redemption patterns; sudden equity outflows could compound the cash squeeze if banks simultaneously raise precautionary balances. None of this amounts to a systemic crisis, but it explains why equity traders linked the CRR tweak to Tuesday’s bond sell-off as well as Wednesday’s equity dip.