Complex sentence: This warrior community, in the districts of Nanded, Parbhani and Berar, across the Painganga River, were in open rebellion from 1798 A. D. till 1820 A. D. under the leadership of Novsaji Naik and had taken possession of a number of strongholds.
Split into simpler sentences: This warrior community, in the districts of Nanded, Parbhani and Berar, across the Painganga River, were in open rebellion from 1798 AD till 1820 AD. They were under the leadership of Novsaji Naik, and they had taken possession of a number of strongholds.