New Delhi, 08 September (NNS): The prices of cumin remained firm at Rs 20400 per quintal because of the weak buying from the stockists even after the feeble prices. In the weekend, the prices remained stable at Rs 20700 per quintal. There were around 6000/7000 bags of cumin reported to arrive and the prices went up by Rs 20/25 per 20 kg. The active contract prices jumped by Rs 75 or 75 percent to Rs 19465 per quintal because of the higher speculative buying. There is no possibility of long uptrend in the spot cumin prices during the near future.