Last week data showed that consumer inflation accelerated to 31.7% annually in July, its highest since late 2003, and the government's top statistician warned that it was not possible to say whether prices had peaked.
Wednesday's "meeting will conclude with an announcement of the decisions of the committee," the bank said.
The committee usually meets every two months and the next meeting was meant to be held at the end of September.
At its July 25 meeting, the bank kept its main interest rate unchanged at 19%, after increasing it by 550 basis points since the end of last year to tackle rampant inflation.
(Reporting by Cooper Inveen; Writing by Alessandra Prentice; Editing by Alistair Bell)
