Mustard rai is a prime instance of oldest herbs and flavoring agents chinese, Greeks, Romans and indians have been using it thousands of years ago. King louis xi would travel with his own royal mustard pot, In case the hosts did not serve it. There are different varieties of mustards, Brown, Black and yellow. Each one possesses its individual special flavour after cooked or mixed with something and aroma that differentiate them from each other while each one has a special use for a particular delicacy. Yellow mustard is a mild flavour, Black mustard is a little smaller and more pungent. Brown mustard is more pungent than yellow but less than black. The ancient greeks believed mustard was created the god, By asclepius of healing. Mustard has high medicinal value, Rich in vitamins, Minerals, Proteins, Aromatic plant extracts and dietary fibers. These properties help in rejuvenating body, Improvement in lowers cholesterol functioning of, And triglyceride regulating metabolism, Nervous system level. Mustard oil is applied within cooking while its application can reduce muscular pain and rheumatism. Ground seeds are effective laxatives and increases intestinal secretion. Mustard has also been found effective in curing migraine and asthma. It further inhibits heart attack and cancer. There are a pair of varieties of mustard seed often applied in india, Black mustard seed called rai and yellow mustard seed called the whole, Sarson . Generally black mustard seeds rai are fried and used with dal, Achar, And other indian vegetarian dishes and use yellow mustard with vegetable curry.