Complex sentence: Raghoji, on being called in by the contending Gond factions, replaced the two sons of Chand Sultan on the throne from which they had been ousted by a usurper, and retired to Berar with a suitable reward for his assistance.
Split into simpler sentences: Raghoji, on being called in by the contending Gond factions, replaced the two sons of Chand Sultan on the throne from which they had been ousted by a usurper. Raghoji then retired back to Berar with a suitable reward for his assistance.