Sugar prices have jumped by Rs 100 per quintal in the last three days on the back of speculations floating in the market that the Centre is likely to restrict sugar sales by mills to stop the current down slide. Sugar prices had dropped to Rs 2,850 per quintal in the last few days, touching a new low which was last seen in March 2016, leading to panic sales among millers. Now, millers will be permitted to sell 15-16% of their stock and hold onto the rest which would curtail supply in the market and bring some stability in prices.