Mustard/Rapeseed oil is considered to be an oil that has low saturated fat as compared to other cooking oils. This pungent tasting oil is mostly used for cooking in parts of Gujarat, Bengal, Assam, Bihar, Orissa, Haryana and some other parts of India. It basically consists of fatty acid, oleic acid, erucic acid and linoleic acid. It has antioxidant and cholesterol reducing properties. It is also loaded with essential vitamins. Though this oil is nutty tasting it is good for heart and also has many other benefits.
Not only for cooking food but also this oil has importance in North-Indian tradition. It is used for lighting 'diyas' during Diwali. It is performed one day before the wedding at both bride's and bridegroom's place.