Prices of mustard seed were down in Jaipur, as demand from domestic oil millers and crushers was subdued. In Jaipur, the oilseed was sold at 4,125-4,130 rupees per 100 kg, down 20-30 rupees from previous close. Demand from domestic buyers is subdued as they have already procured the oilseed at lower rates. Lower arrivals, however, cushioned the fall in prices.