In September, the lending rise was driven by higher loans in both local and foreign currency, the central bank said.
Private lending rose by 5.3% in real terms in September, compared with a monthly rise of 2.9% in August.
Private lending in foreign currency rose 47.3% on the year in September and 2.9% on the month in real terms, while local currency lending rose 26.9% on the year and 1.8% on the month in September, the bank said.
Annual inflation slowed to 7.3% in September, from 8.02% in the previous month on the year in August, and analysts say this might go down to 7%-7.1% by the end of the year.
The central bank has hiked interest rates by 325 basis points in seven consecutive sessions since October 2007, in a bid to curb surging inflation, which began last year, driven by a low farming output and a lending boom spurring consumption.
The central bank will hold its next meeting dedicated to monetary policy on October 30.