Complex sentence: The story is set in the caste society of India, at a time when members of the Untouchable Paravan or Paryan caste were not permitted to touch members of higher castes or enter their houses.
Split into simpler sentences: The story is set in the caste society of India. In this time, members of the Untouchable Paravan or Paryan were not permitted to touch members of higher castes or enter their houses.