New Delhi, 03 November (NNS): The prices of dry ginger have been increasing due to the  arrivals of the winter season, whereas, the availability of the stock reported to be weak due to the decrement in the production from the famous producing countries like Nigeria. Recently, its prices ascended by Rs 2000 per quintal, due to this, the prices of average quality stock also went up to Rs 34500/35000 per quintal. There is a shortage of old superior quality stock in markets and the stockists, due to this, the sellers have full control over the market. On seeing the weak supply and expectations of increment in the price, both the big traders and the stockists are purchasing the stock at the lower level  and it is expected that the prices may increase after some time.