New Delhi, 12 November (NNS): The availability of dry ginger seems weak at the international level owing to the downfall in the producing from the major producing countries like Nigeria as the demand of Indian dry ginger have been increasing constantly. Both the big stockists and the traders are buying the stock at the lower level on seeing the weak supply. Recently, the prices have gone up by Rs 500 to Rs 34500/35000 per quintal. The prices of dry ginger may increase owing to the continuous increment in  the demand of ayurvedic food products.