Rai is small, brown mustard seeds that are used in Indian households. These versatile seeds are used in tempering while preparing poha, masala aalo, sambhar, fish curry, dal tadka, etc. The distinctive aroma and flavour of these seeds are extracted and retained by the hot oil. It can be used for preparing natural face scrub and hair mask. Rich source of iron, calcium, magnesium and other minerals, rai provides respiratory relief, lowers cholesterol level, promotes digestion and controls diabetes.