New Delhi, 22 march (NNS): The prices of big cardamom showed heavy uptrend during the second days owing to the bullish news from the auction and sluggish production. Now, the prices improved by Rs 10 to Rs 1390 per kg. During the previous day, the prices have gone up by Rs 20 per kg. The average auction price rose to Rs 1150/1600 per kg in the last auction which held during the previous day. Due to this, the market sentiment may affect. There is no possibility of more uptrend in the prices during the coming one or two days