Indian Polity · Polity

With reference to the role and powers of the Speaker of the Lok Sabha under the anti-defection framework, consider the following statements: I. While deciding cases related to defection, the Speaker performs a quasi-judicial function. II. Decisions taken by the Speaker in defection matters are open to judicial scrutiny. III. The Speaker is empowered to disqualify a Member of Parliament solely for violating party instructions in all circumstances. How many of the statements given above are correct?