Cardamom futures for June declined by Rs 33.20, or 3.92%, to Rs 812.30 per kg in 242 lots.
At the Multi Commodity Exchange (MCX), the May contract shed Rs 24.60, or 3%, to Rs 797 per kg in 1,119 lots.
Prices fell as speculators reduced their positions amid adequate stocks in physical market against weak demand.
Besides, profit-booking at prevailing levels also put pressure on prices.