Elettaria cardamomum is far more important economically than others and constitutes the second most important 'National Spice' of India and is known as the 'Queen of Spices' and it forms one of the most valuable crops of South India. In India, state of Kerala has the largest area under cardamom cultivation (about 62% of the total), followed by Karnataka (31%) and Tamil Nadu (7%). Zingiber officinale also constitutes one of the five most important major spices of India and about 70% of the total ginger production is confined to Kerala alone, which produces best quality ginger. Curcuma longa is another very important spice of India and a traditional item of export from ancient times (Pruthi, 1976).