It is an extremely tall variety. The height of this variety can even hide wild elephants when they enter the farm and for this reason it is called as “Kattuyanam” (meaning wild elephant in Tamil). Characteristics of the grain. The rice of this variety is light red in colour and bold in nature.Fibre-Rich: It has been shown to prevent or mitigate constipation. It also contains both soluble and insoluble fibre. Kattu Yanam aids in the digestion and utilisation of amino acids. It helps with many bodily functions such as glucose, cholesterol, and carbohydrates.