Dholak is one of the most important folk instruments of membraphonic class. It is used for accompaniment for singing & dancing. As such, t is accepted as a percussion instrument for varied kinds of music, from modern film music to simple folk songs & dance. The e shell or the main body of the dholak is hollowed out of a solid block of wood, over the two usually equal size open ends of the hollowed cylinder, parchment is stretched by tightening cords of braces through leather hoops on both sides. To achieve tonal variation between the two heads, generally a part of flour & iron filling s fixed on the parchment of the left side to permanently lower the tension of the left side head.