The purpose of an opposition party in a political system is to provide a counterbalance to the ruling party, promoting accountability and ensuring diverse viewpoints are represented. Opposition parties challenge government policies, scrutinize decisions, and advocate for alternative approaches, thus fostering healthy political debate. Their role is essential to sustaining a vibrant democracy, as it gives citizens choices and encourages public engagement. Additionally, a strong opposition can help prevent the misuse of power by the ruling party, contributing to a more transparent governance process.