According to Japanese brokerage major Nomura, much of the WPI deflation continues to reflect lower global commodity prices, rather than weaker domestic pricing power.
"Underlying trends suggest that WPI deflation is bottoming out. As base effects wane, WPI deflation will cease from the first quarter of 2016 onwards, but price pressures are expected to stay subdued," Nomura said in a research note.
According to official figures, deflationary trend continued for the 11th straight month with Wholesale Price Index based inflation remaining in the negative territory at (-)4.54 per cent in September.
Even though year-on-year WPI readings remain negative, food and manufactured product prices (metals, cement) rose sequentially in September.
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"We expect WPI inflation to remain negative until end- 2015, but as base effects wane, it should turn positive from Q1 2016 onwards. Overall, we expect WPI deflation to cease, but price pressures are expected to stay subdued," it added.
Meanwhile, the CPI, or retail inflation, for September rose to 4.41 per cent, from 3.74 per cent in July.
Last month, RBI had reduced interest rates by more than expected 0.50 per cent and said it expects CPI inflation to reach 5.8 per cent in January 2016.