New Delhi, 30 October (NNS): Here, the prices of cumin declined by Rs 100 to Rs 20500 per quintal owing to the weak sale even after the feeble prices. During the previous day, the prices have gone up by Rs 200 per quintal. There were around 10000/12000 bags of cumin reported to arrive in Unjha and the prices remained stable at the same level of the previous day. The active contract prices softened by Rs 30 or 0.15 percent to Rs 19900 per quintal due to the weak speculative buying. The market sentiments may change due to nominal changes in the weather conditions of Gujarat. The spot cumin prices will not likely to increase during the coming days.