The March wholesale price index-based inflation was higher than (-)0.91 per cent in February. In March last year, it was (-)2.33 per cent.
This is the 17th straight month since November 2014 when deflationary pressure persisted.
Food inflation stood at 3.73 per cent in March compared with 3.35 per cent in February, showed official data released today.
Inflation in vegetables came in at (-)2.26 per cent in March while the same in pulses was high at 34.45 per cent.
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The inflation print in the fuel and power segment was (-)8.30 per cent, and for manufactured products, it read (-)0.13 per cent in March.
The January WPI inflation has been revised lower to (-)1.07 per cent from the provisional estimate of (-)0.90 per cent.
The Reserve Bank mainly looks at retail inflation data while firming up its monetary policy stance. Retail inflation in March fell to a six-month low of 4.83 per cent.
RBI earlier this month cut the key policy rate by 0.25 per cent and projected retail inflation to be around 5 per cent this fiscal.
The Met department, however, later forecast an above-normal monsoon for this year.