Mustard seed prices were up in Jaipur, due to renewed demand from domestic oil millers and crushers after prices hit an over two-year low recently, traders said. In Jaipur mustard seed up 30 rupees. A sharp fall in arrivals also supported prices. Arrivals across the country were estimated at 14450 tn vs 21,250 tn. Arrivals have declined because farmers are not ready to sell their produce at lower rates.