New Delhi, 01 December (NNS): The prices of big cardamom Kainchicut slipped by Rs 20 to Rs 1660 per kg owing to weak buying from the stockists even after the downfall in the prices. Recently, the prices have gone down by Rs 20/25 per kg. The average auction price reported to be at Rs 1450/1737 per kg in the last auction which held on 27th November, due to this, the market sentiments may affect. The spot big cardamom prices will likely to remain high during the coming one or two days.