Inflation cooled to 9.59 per cent in April, although prices of a number of food items and non-food items such as metals rose.

The fall is partly due to a high base effect - which means the inflation numbers in the year-ago period had already started rising making the current rate of growth look relatively small.

Last year this time, inflation was 1.31 per cent, against 1.2 per cent in March 2009. In March this year, wholesale prices-based inflation was at 9.90 per cent.

In Kolkata, the government's chief economic advisor Kaushik Basu said inflation would fluctuate in the next three months before falling.

HDFC chief economist Abheek Barua said, "May numbers could be around 8.5 per cent as the base was quite high last year. Although there might be some increase in June because of base effect."

With inflation easing, economists do not anticipate any immediate policy actions from the Reserve Bank as industrial growth is showing signs of deceleration and the Eurozone debt crisis may affect fund flows.

Factory production in March expanded by a slower than expected 13.5 per cent. Elsewhere, the stock markets turned edgy after investors worried about the efficacy of a Euro 110 package approved by EU-IMF to bail out Greece from its debt obligations.

"With the global uncertainty and lower than expected March industrial growth numbers, RBI would not adopt any drastic step and rather resort to a gradual approach towards rate hike," said StanChart Bank regional head of research, India, Samiran Chakraborty.

According to the monthly inflation data, potato prices fell 28.70 per cent in April, and onion prices dropped 11.62 per cent.

However, vegetables overall rose 31.90 per cent, which means that prices, except for potatoes and onions, are rising much faster.

Sugar prices fell by 5.74 per cent on monthly basis, but turned costlier compared to last year.

For April, food inflation stood at 16.87 per cent against 16.65 per cent in the previous month with prices of pulses rising by 2.47 per cent and milk by 2.96 per cent.

On yearly basis, these prices rise much faster--pulses by 30.42 per cent and milk by 21.95 per cent.

Also fuel prices rose 12.55 per cent, essentially because the Budget hiked customs and excise duty on petrol and diesel.

The main area of concern, however, remained metal, since hardening global prices are putting pressure on domestic rates.

Iron and steel prices rose 11.40 per cent in April on monthly basis and basic metal alloys and metal products turned expensive by 6.72 per cent.

The trend showed that inflation is fast spreading to non -food items.

In fact, prices of certain other manufactured items also increased during the month. Cotton textiles prices rose by 15.66 per cent, while chemical products became dearer by 5.67 per cent.

Chief statistician Pronab Sen said, "Fear of food inflation spreading to other sectors is still there. It will take a little bit of more time for it come down. I hope inflation would see a declining trend hereafter."

Barua said although the manufactured category prices' increase was lower than expected, non-food items, including metals, are showing rising trend for the past 3-4 months.

Barclays' research division said, "We expect non-food manufacturing inflation to continue to trek higher, with base metals prices likely to increase on the back of elevated commodity prices and strong demand."

Analysts are hopeful that inflation would fall to 5.5 per cent by March 2011 - as forecast by RBI - helped by prediction of a normal monsoon that could bring down pressure on food prices.

"I think the trend of inflation is to soften," said C Rangarajan, Chairman of Prime Minister's Economic Advisory Council.

RBI's FY'11 projection of 5.5 per cent is achievable, Barua said.