A writ of Mandamus is a legal order issued by a court to a public official or a lower court, commanding them to perform their legal duty. It is used when there is a failure or refusal to carry out a public duty that is legally required.

Option 1 correctly states that a writ of Mandamus can be issued by the Supreme Court to an official to perform their public duty. This means that if a public official is not fulfilling their obligations, the Supreme Court can issue a writ of Mandamus to legally compel them to do so.

Options 2, 3, and 4 are incorrect. The Prime Minister cannot be forced to dissolve the Cabinet through a writ of Mandamus. Similarly, a company cannot be ordered to raise wages, and the government cannot be compelled to pay salaries to employees through a writ of Mandamus.

Therefore, the correct answer is option 1.