The anti-defection law plays a pivotal role in maintaining political stability within parliamentary systems. By preventing elected representatives from switching parties post-election, the law aims to uphold the integrity of electoral mandates and avoid opportunistic shifts that could destabilize governments. It ensures that party loyalty is honored, which is crucial for coalition governments where stability hinges on maintaining support among various factions. However, while it seeks to promote stability, the law can also lead to issues such as lack of representation and constrain MPs from responding to their constituents' needs, thereby complicating the overall political landscape.