Complex sentence: The Perumal kingdom was a loose federation of local chiefs nominally acknowledging the sovereignty of the Cheraman Perumal and supporting him in defensive wars against the other Tamil powers.Chera Dynasty was supported by Tamil Villavar warriors supported by Villavar, Vanavar and Malayar clans.
Split into simpler sentences: The Perumal kingdom was a loose federation of local chiefs nominally acknowledging the sovereignty of the Cheraman Perumal and supporting him in defensive wars against the other Tamil powers. The Chera dynasty was supported by Tamil Villavar warriors, supported by the Villavar, Vanavar and Malayar clans.