New Delhi, 24 August (NNS): The prices of big cardamom kainchicut gained by Rs 30 to Rs 1680 per kg due to the limited buying from the stockists even after the downfall in the prices. Recently, the prices have reduced in the same ratio. The average auction price reported to be at Rs 1400/1675 per kg in the last auction which held on 20thAugust. The market sentiments may affect as the new crop will likely to in the first half of the upcoming month and the end of the current month. There is no fear of downfall in the prices during the coming days.