New Delhi, 29 August (NNS): The prices of big cardamom Kainchicut softened by Rs 10 to Rs 1510 per kg owing to the improved sale even after the sluggish prices. Recently, the prices have gone down by Rs 20 per kg. The average auction price reported to be at Rs 1250/1725 per kg in the last auction which held during the previous day, due to this, the market sentiments may affect. There is no possibility of uptrend in the spot big cardamom prices during the coming one or two days.