The RBI decision, which comes days after a slew of measures taken by the government to push growth, will release Rs 17,000 crore of primary liquidity into the system.
The liquidity infusion, RBI said, would ensure adequate flow of credit to productive sectors of the economy.
Following the cut, CRR will come down to 4.5 per cent while the repo rate, at which the central bank lends to the banks, would remain unchanged at 8 per cent.
The reverse repo, at which it absorbs excess liquidity through borrowings from banks, remains at 7 per cent.
"As inflationary tendencies have persisted, the primary focus of monetary policy remains the containment of inflation and anchoring of inflation expectations," RBI Governor D Subbarao said while announcing the mid-quarter review of the monetary policy.
The wholesale price-based inflation for August moved up to 7.55 per cent from 6.87 per cent in the previous month. MORE