KATHMANDU, Nov 15: The year-on-year (y-o-y) consumer price inflation in the Kathmandu Valley, Terai, Hill and Mountain region surged to 10.23 percent, 5.66 percent, 7.38 percent and 10.24 percent respectively, the Nepal Rastra Bank (NRB) stated in its Current Macroeconomic and Financial Situation of Nepal Report based on three months data ending Mid-October, 2023/24.