6. Consider the following statements regarding Comptroller and Auditor General of India (CAG).
- CAG is an extra constitutional body, who is the head of the Indian Audit and Accounts Department.
- The duty of CAG is to uphold the Constitution of India and the laws of Parliament in the field of financial administration.
- CAG is the guardian of the public purse and controls the financial system of the country at both the levels of centre and state.
Which of the above statements is/are correct?