RBI Governor Raghuram Rajan said that keeping inflation low is the key task for sustainable economic growth of the country. Under pressure to cut interest rates to lower cost of capital, the apex bank is scheduled to hold its next monetary policy review meeting on 29th of this month. Expectations for the cut have further increased after the US Federal Reserve Thursday night decided on a status quo to its ultra-low rate regime.Addressing industry leaders and bankers in Mumbai this morning at an event, Rajan said that limping global growth coupled with uncertainty about the US growth probably compelled the Federal Reserve to keep rates on hold.