Article 148: the Comptroller and Auditor-General can be removed only in like manner and on like grounds as a Judge of the Supreme Court
Background
Replace 'Salary and conditions of service shall be such as may be determined by Parliament by law, and shall not be varied to his disadvantage after his appointment.' with 'Salary and other conditions of service shall be such as may be determined by Parliament by law and, until so determined, shall be as specified in the Second Schedule; neither the salary nor his rights in respect of leave of absence, pension or age of retirement shall be varied to his disadvantage after his appointment.'
Appointment and independence:
Article 148
Duties and powers:
Article 149
Form of accounts:
Article 150
Audit reports:
Article 151
Form of oath:
Third Schedule
Why it matters for exams: The articles governing the Comptroller and Auditor-General are a standing favourite in polity papers, and the removal clause and the Consolidated Fund charge are the two details most often tested.
Kerala PSCUPSC
In plain words
CAG Comptroller and Auditor-General of India — The constitutional authority that audits the accounts of the Union and the States.