He further said the "excessively low" level of retail inflation at 3.6 per cent last month was due to "base effects", excluding which it should be around mid-5 per cent.
"The key task is to keep inflation low, not just today but well into the future," the Governor said while addressing industrialists and bankers at an event here.
Rajan has been under pressure to cut the rates further, with the government and industry leaders repeatedly stressing on the need to lower the cost of capital to give a boost to the economy, especially in the wake of retail inflation hitting record low levels and wholesale inflation actually being in the negative zone for 10 months in a row.
Explaining further, Rajan said, "The 3.6 (per cent) we got last month is I think rendered excessively low by base effects (and) if you add back the base effects, it is about mid-5s."
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Rajan, who has cut rates thrice this year, attributed his US counterpart Janet Yellen's decision to delay a rate hike to slow growth in the US and other big economies, and sought to convey it does not change RBI's monetary policy machinations.
The Fed's no-show, coupled with the inflation staying much below the RBI's projected trajectory for many months, has raised the possibility of Rajan delivering a sentiment-driving rate cut on September 29, the next scheduled review date.
To the large posse of reporters looking for hints about RBI's next move, Rajan said, "I know these cameras are here not to see me speak on core competencies but on interest rates - so let me offer my standard disclaimer.