Which of the following appointments are made by the President of India by warrant under his hand and…

Under the Constitution of India, the Judges of the Supreme Court (Article 124(2)), the Judges of High Courts (Article 217(1)), the Comptroller and Auditor-General of India (Article 148(1)), and the Governor of a State (Article 155) are expressly appointed by the President “by warrant under his hand and seal.” By contrast, the Chairman of the UPSC (Article 316) and the Attorney-General for India (Article 76) are appointed by the President without the constitutional requirement of a warrant under his hand and seal. Thus, (a) and (b) is correct.