Sen said though the impact of the sharp decline in food inflation is likely to get reflected in the overall inflation rate also,the non-food categories will neutralise it somewhat. It is the non-food inflation which is now driving the wholesale price index. So, thats what on which we will have to keep our eyes open, Sen said. Food inflation fell sharply to 9.67% for the week ended July 17, from 12.67% in the previous week. Sen, who last month retired as the Chief Statistician, said the steep decline in food inflation is likely to continue for some time but it will not hit the bottom. The fall is expected but we should not expect that it is going to come down to 2-3%. That is not going to happen, he said, however, adding the softening food inflation will help in streamlining the monetary policy.