New Delhi, 12 May (NNS): The prices of big cardamom Kainchicut reduced by Rs 20 to Rs 1530 per kg due to the weak buying from the stockists even after the sluggish prices. Recently, the prices have gone down in the same ratio. Its average auction price gained to Rs 1350/1900 per kg in the last auction which held on 01st May, due to this, the market sentiments may affect. There is no possibility of downfall in the spot big cardamom prices during the near future.