Potato prices rose by Rs 5.10 or 0.97 per cent at Rs 532.10 per quintal in the futures trade as traders enlarged their positions on account of high domestic demand. Restricted arrivals from the producing regions also supported the uptrend. Potato for May-month contract rose Rs 5.10 or 0.97 per cent to Rs 532.10 per quintal in a trading volume of 100 lots. The potato for June-month contract also traded higher by Rs 4.80 or 0.91 per cent to Rs 531.30 per quintal in a trading volume of 85 lots. Marketmen said,increased buying by speculators following rising demand in domestic markets mainly led to a rise in potato prices at futures trade. They said restricted arrivals from producing belts in Haldwani and Agra also influenced the trading sentiment to some extent.