Dimensions of Shankh: 8.5 inches long and 14 inches perimeter. The sound produced by blowing shankh is called shankhnaad. These days, shankh is blown at the time of worship in Hindu temples and homes. Shankhs are blown during the ritual of the Hindu aarti, puja, havan, etc. when the light is offered to the deities. The shankhs are also used to bathe statues of deities, especially Vishnu, and for ritual purification.