gamusa or gamosa. cloth with a gamosa design. The indigenous Assamese people consider the gamosa, also known as the gamusa, to be a sacred object.The gamosa is fabricated in soft cotton material which feels light on your body & gives you an exceptional look. gamosa (Assamese) - a heritage textile of Assam. This textile is typically Assamese and can be found in every household.Gamosa is of rectangular shape, around 2 feet in width and 4 feet in height, closer to the shape of a towel. It s white in colour with red borders. Gamosha is made manually in the villages of Assam. Assamese Gamosa is mostly woven out of white threads with colourful and intricate inlays in red.