Complex sentence: Purandar fort (or Purandhar fort) figures repeatedly in the rising of Shivaji against the Bijapur kingdom and the Mughals and was one of the favourite forts of Shivaji.
Split into simpler sentences: Purandar fort (also called Purandhar fort) figures repeatedly in the rising of Shivaji against the Bijapur kingdom and the Mughals. It was one of the favourite forts of Shivaji.