Soybean prices in benchmark Indore market was down because of increased arrivals. Arrivals of the oilseed increased on fear of further fall in the prices. Soybean prices are declining in the last few days because of improved crop condition due to recent favorable rains in major growing areas. Futures contract of soybean on the NCDEX also traded lower following spot prices. The most-active October contract traded down 1.1% from previous close.