In Ponniyin Selvan, both Aditya Karikalan and Parthibendran are against the decision to make Madhurandhagan the next king. Aditya Karikalan is the eldest son of Sundara Cholar and sees himself as the rightful heir, while Parthibendran has his own political motivations. King Sundara Cholar and Paluvettarayar support the decision, making them incorrect choices.