In Ardhachandra all the finger are held straight and together, except the thumb finger which is held apart. It is just like the Pataka gesture , but the thumb finger is held straight and not bent like in Pataka. Following is the Viniyoga Shloka (uses): Chandra krishnashtami Bhaji glahastarthakepi cha Bhallayudhe devatanam-bhishechana-karmani Bhukapatre chodbhave katyamchintayam [...]