New Delhi, 01 August (NNS): The prices of big cardamom Kainchicut gained by Rs 10 to Rs 1520 per kg owing to the improved offtake at the sluggish rates. Recently, the prices have gone down by Rs 20 per kg. The average auction price reported to be at Rs 1250/1812.50 per kg in the last auction which held on 12th June. The market sentiments may affect because the new crop will likely to arrive after 20/25 days. There is no possibility of long uptrend in the spot big cardamom prices during the coming one or two days.