Complex sentence: The Sindhia state of Gwalior became a major regional power in the latter half of the eighteenth century; they figured prominently in the three Anglo-Maratha Wars, held sway over many of the Rajput states, and conquered the state of Ajmer.
Split into simpler sentences: The Sindhia state of Gwalior became a major regional power in the latter half of the eighteenth century and figured prominently in the three Anglo-Maratha Wars. They held sway over many of the Rajput states, and conquered the state of Ajmer.