Crests have been used for the purpose of recognition and distinguishing formations or Units. They are symbols and source of inspiration and encouragement for the soldiers. The Air Force has adopted various crests for the commands, Squardron and the other establishments. The Crests in the Indian Air Force comprises of a standard frame. The central portion of the frame contains the individual formation sign with a motto shown in the scroll at the foot of the frame. The unit sign is drawn inside a circle of 3 inches diameter. The name of the formation of the units is shown in the upper half of the circle while Bhartiya Vayu Sena inscribed in the lower half. The crest and the motto are designed based on the role of the formation. The Crest is approved by the President of India and is of great historical and sentimental value. The Crest is normally presented by the AOsC-in-C at ceremonial parades. The importance of the crest can be understood from the fact that the movement of the crest from one place to other is done only by hand of an officer.