New Delhi, 16 October (NNS): The prices of big cardamom Jhundiwali declined by Rs 80 to Rs 980 per kg owing to the weak buying after the higher prices. The average auction price rose to Rs 850/1220 per kg in the last auction which held on 12 October. The market sentiments may affect because of the ongoing festival season. There is no possibility of downtrend in the prices during the coming days.