Question: why ravana never touched sita?
Answer: It is Myth created by ardent devotees of Sri Rama that Ravana could not touch her and hence she was abducted by lifting the entire land mass on which she stood at. ... He that Ravana grabbed the lotus-eyed Seetha on lifting her up with his left hand at her plait of hair at nape, and with his right hand at her thighs.