This is MAYAPURI Blowing Shankh (conch shell) with white color. It has loud sound. These are the most commonly available shankhas and used for all religious purposes. The special geometry of this kind of natural shankha creates a positive energy field. Importance of Sounding Conch. Protect from evil spirits. The blowing of the conch increases respiratory capacity. A shankha shell is often referred to in the India as a conch shell, or a Shankh shell. The Shankh trumpet is sounded during worship at specific times, accompanied by ceremonial bells and singing.