Complex sentence: Different versions of the Ramayana record her ill-treatment at the hands of Rama's monkey generals to disturb a sacrifice by Ravana or to destroy her chastity, which protected Ravana's life.
Split into simpler sentences: Different versions of the Ramayana record her ill-treatment at the hands of Rama's monkey generals. Some versions say they disturb a sacrifice by Ravana, and some that they destroy her chastity, which protects Ravana's life.