Weakening growth was a dominant worry for policy makers amid weaker global activity, they noted.
"With RBI projecting inflation at below target over the next four quarters, the door for cuts remains open. We suspect further downward growth revisions might trigger further rate response," the DBS report said.
The report however cautioned that "the debate over remaining policy space is beginning to surface" after 110 bps cuts already undertaken and another likely in the fourth quarter (4Q).
In an unusual move, the Reserve Bank of India (RBI) on August 7 had reduced the benchmark lending rate by 35 basis points to 5.40 per cent amid concerns over slowdown in economy. Before this, the RBI had reduced the rate thrice, each time by 25 basis points.
"Transmission will be accorded the highest priority, as the RBI's moral suasion attempts, surplus liquidity and consideration of an external benchmarks nudged banks to act," the DBS report noted.
While the RBI has lowered the repo rate by 1.1 percentage points in 2019, the banks are yet to pass on the entire benefit of lower interest rate to borrowers.
RBI Governor Shaktikanta Das recently asked all banks to link their interest rate with repo for faster transmission of the central bank's policy actions.