New Delhi, 12 March (NNS): The prices of dry ginger remained firm at Rs 28500 per quintal due to the weak sale amid increment in temperature. Recently, the prices have gone down by Rs 500 per quintal. Both the arrivals and the prices held stable at the same level of the previous day. The market sentiments may affect as the summer season has been started. There is no possibility of increment in the prices during the coming days.