When Ravan is preparing his weapons while worshiping Shiva, we first see the sword in its scabbard tied to his back by itself. Then, when he ties his quiver on, the sword is gone. Then, when he's stringing his bow, the sword and quiver are there together. Finally, he is seen putting the sword into the scabbard on his back, with the quiver already in place.
When Surya Dev (the Sun God) is imparting education to Maruti, in one scene when Surya Dev's right hand moves closer to his neck, even though it is over the neck, the part of his hand placed over the neck is not seen throughout the shot, while the lower part of his hand is seen.