The monetary policy committee is scheduled to meet from April 2 to 4.
"We now think a 25 basis points cut is likely in the April meeting. Our thinking is driven by three factors- continued weakness in economic activity, still benign inflation and soft global growth, and a dovish Fed," Goldman Sachs said in a report.
It expects inflation to remain below the RBIs medium term target until the end of 2019.
The brokerage expects some pick-up in growth over the course of this year, and forecast real GDP growth to increase from 7.1 percent in FY19 to 7.5 percent in FY20.
Headline CPI inflation rose to 2.6 percent in February, reversing a declining trend since July 2018.
The report lowered its inflation forecasts and now see average headline CPI inflation at 3.4 percent in FY19 compared to 3.6 percent before.
It expects some pick-up in food inflation over the course of the year as favourable base effects begin to wane and momentum builds as indicated by the recent prints on consumer and wholesale prices.
"Based on our outlook for food, partly offset by lower commodity prices, and a stable core, we forecast average headline inflation to rise from 3.4 percent in FY19 to 4 percent in FY20," it said.
The brokerage had earlier expected no change in the policy rate in the April meeting.
It, however, said a decision to hold rates steady at the April meeting remains a significant possibility.