Complex sentence: Goddess Devayanai or Deivanai, is the daughter of Indra, the King of the devas, who was given in marriage to Lord Muruga, on vanquishing the demon Soorapadman, and thereby restoring the Indraloka, the Kingdom of Heaven, to Lord Indra.
Split into simpler sentences: Goddess Devayanai or Deivanai, is the daughter of Indra, the King of the devas. She was given in marriage to Lord Muruga, on vanquishing the demon Soorapadman, and thereby restoring the Indraloka, the Kingdom of Heaven, to Lord Indra.