Brassica juncea (L.) Czern & Coss., also known by the name of Indian mustard, belongs to the plant family Brassiceae (Cruciferae) or the mustard family. In the trade, it is commonly referred to as Rapeseed-mustard along with four other closely related cultivated oilseed species viz. B. rapa, B. napus, B.carinata and Eruca sativa. Over the past couple of decades, these crops have become one of the most important sources of vegetable oil in the world. Continuous improvement in rapeseed-mustard has resulted in nutritionally superior edible oil, and meal as an important source of protein in animal feed. Rapeseed mustard crops are commercially cultivated in more than 60 countries and major produces include China, Canada, India, Australia, France, Germany, United Kingdom, Poland, Ukraine, Russia, USA and Czech Republic.