Union Government
(1) There shall be a Comptroller and Auditor-General of India, appointed by the President, removable only in the same manner and on the same grounds as a Supreme Court Judge. (2) The CAG takes the prescribed oath before entering office. (3) The CAG's salary and service conditions are determined by Parliament (or, until then, the Second Schedule), and cannot be varied to their disadvantage after appointment. (4) The CAG cannot hold any further office under the Union or a State government after leaving this office. (5)-(6) Service conditions of the CAG's department staff, and the CAG's administrative powers, are prescribed by presidential rules made in consultation with the CAG; the office's administrative expenses are charged on the Consolidated Fund of India.
The Comptroller and Auditor-General (CAG) - India's top government auditor - is given the same strong job-security protections as a Supreme Court judge (an equally demanding removal process) specifically to ensure they can audit government spending independently, without fear of political retaliation. The CAG is also barred from taking any further government job afterward, removing any incentive to go easy on the government while in office in hopes of a future post.
This is why CAG reports - which regularly scrutinise government spending, contracts, and programmes for waste, irregularity, or loss to the public exchequer, and have sometimes triggered major political controversies - are seen as carrying real independent authority, since the CAG cannot be removed or professionally rewarded by the very government it is auditing.