It is said that Ravana had 10 heads and 20 hands .............but accordin to sdny ....the locket cud only provide illusion ...i.e Ravana had no 10 heads............???? When Ravana got boon from Brahma that no God can harm him he did not give importance to ask security from human and animals........... So, bishnu had to born as human and had to defeat Ravana with the monkey-armies...... And it was so stupid of Ravana to rape Rambha............ what do u mean by Rambha or Kuber main chori sundari????