"We see wholesale price deflation persisting for another four months till October if the dated Brent ends 2015-16 at USD 62 a barrel," BofA-ML said in a research note.
The Wholesale Price Index based inflation was at negative 2.4 per cent in June, which was the eighth consecutive month of decline.
While CPI inflation will indubitably remain the official inflation target, it expected the RBI to absorb the key message of weakening imported inflation in its monetary policy formulation going forward.
The note said RBI Governor Raghuram Rajan is likely to cut repo rate by 50 basis points in early 2016, with CPI inflation well on track to be under RBI's comfort zone of under 6 per cent in January 2016.
"If the monsoon rains rotate back next week, the RBI could also cut (rate) on August 4 if the Fed is none-too- hawkish on July 29," the brokerage said.