The Comptroller and Auditor General of India can hold his office for a maximum period of:

The correct answer is (C) 6 years.

• According to Article 148 of the Constitution of India, the Comptroller and Auditor General (CAG) holds office for a term of six years or until he attains the age of 65 years, whichever is earlier.
• The CAG is appointed by the President of India by warrant under his hand and seal and is responsible for auditing the accounts of the Union and State governments as well as public sector undertakings.
• Options (A), (B), and (D) (4, 5, and 7 years) are incorrect because the tenure of the CAG is constitutionally fixed at 6 years, distinguishing it from several other constitutional functionaries.