New Delhi, 03 June (NNS): The prices of big cardamom kainchicut reduced by Rs 20 to Rs 1540 per kg owing to the sluggish sale even after the uptrend in the prices during the previous day. Recently, the prices have gone down in the same ratio. The average auction prices reported to be around Rs 1350/1600 per kg in the last auction which held on 28th May, due to this, the market sentiments may affect. There is possibility of break on downfall in the spot big cardamom prices during the coming days.