According to the Constitution of India, there shall be a Comptroller and Auditor General of India who shall be appointed by the _______.

President of India

The correct answer is Option 3 - President of India

The Comptroller and Auditor General (CAG) of India serves as the administrative head of the Indian Audit and Accounts Department. This department is responsible for auditing the accounts of the central and state governments, as well as public sector organizations and other bodies receiving government funds.

Appointed by the President of India, the CAG holds a constitutional office and operates independently of the government. This independence is crucial to maintain the integrity and credibility of the auditing process, as the CAG's reports serve as vital tools for parliamentary oversight and public accountability.