New Delhi, 30 March (NNS): The prices of big cardamom kainchicut improved by Rs 10 to Rs 1660 per kg owing to the limited buying from the stockists even after the feeble prices. Recently, the prices have gone up in the same ratio. The active auction price went down to 1375/1600 per kg in the last auction which held on 26th February, due to this, the market sentiments may affect. There is no more downfall in the prices during the coming one or two days.