Under pressure to cut interest rates to lower cost of capital, RBI Governor Raghuram Rajan on Friday said keeping inflation low is the key task for sustainable economic growth of the country.

RBI is scheduled to hold its next monetary policy review meeting on September 29 where Rajan is widely expected to announce this year's fourth rate cut and expectations for the same have further increased after the US Federal Reserve last night decided on a status quo to its ultra-low rare regime.