English: Eri Silk comes from the worm Samia cynthia ricini, found in North East of India and some parts of China and Japan. The name Eri is derived from the Assamese word ‘era’, which means castor as the silkworm feeds on castor plants. One of the common names, the 'Ailanthus Silk moth', refers to the host plant. Eri silk is also known as endi or errandi in India. The wooly white silk is often referred to as the Ahimsa silk or the fabric of peace as the process does not involve the killing of the silk worm. Moths leave the cocoon as soon as it is ready to be spun. The eri silk worm is the only completely domesticated silkworm other than Bombyx mori.