One of the most useful essential oil-bearing, as well as a medicinal plant, is Coriandrum sativum L. Coriander powder/ Kothamalli powder/ Kothamailli podi/ Kothamalli thool/ Kottamalli vitai/Methi powder is good for digestion. 24 Mantra Organic Coriander Powder/ Kothamalli powder/ Kothamailli podi/ Kothamalli thool/ Kottamalli vitai/Methi powder is made from unadulterated, organic coriander seeds. The seeds are cleaned and ground into powder.