Characteristics
The basic katar has a short, wide, triangular blade. Its peculiarity lies in the handle which is made up of two parallel bars connected by two or more cross-pieces, one of which is at the end of the side bars and is fastened to the blade. The remainder forms the handle which is at right angle to the blade. Some handles have long arms extending across the length of the user's forearm. The handle is generally of all-steel construction and is forged in one piece together with the blade.
The blade, typically measuring 1–3 feet in length, is usually cut with a number of fullers. Most katar have straight blades, but in south India they are commonly wavy. South Indian blades are often made broad at the hilt and taper in straight lines to the point, and elaborately ribbed by grooves parallel to the edges. Occasionally the blades are slightly curved, making them suited for slashing attacks. Some blades are forked into two points, which would later develop into the scissors katar.
The force of a katar thrust could be so great that many blades were thickened at the point to prevent them from bending or breaking. This also strengthened their use against mail. All katar with thickened tips are commonly described as "armour-piercing", but it's likely that only narrow and slender blades made this function possible. Such a weapon was capable of piercing textile, mail, and even plate armor. This quality was preferred for warfare, where an opponent was more likely to be armor-clad, as opposed to single combat.
The Indian nobility often wore ornamental katar as a symbol of their social status. The hilts may be covered in enamel, gems, or gold foil. Similarly, figures and scenes were chiselled onto the blade. Sheathes, generally made from watered-steel, were sometimes pierced with decorative designs. The heat and moisture of India's climate made steel an unsuitable material for a dagger sheath, so they were covered in fabric such as velvet or silk. Some katar served as a sheath to fit one or two smaller ones inside.
Read more about this topic: Katara (dagger)