Notice of appointment of auditor contains every detail regarding the respective company and the information about the auditor. To make the data valid, a company must provide its corporate identification number (CIN) and Global Location Number (GLN) in the company’s notice. Apart from this, a company should mention the name of the company, addressed of the registered office, email id of the company and the date of appointing the auditor. In respect of auditor’s information, the company should specify the information, including the category of the auditor (individual/firm), name of the auditor, income tax details, registration number, its address and so on. All the information should follow the Companies ACT, 2013. The issuing officer should sign the notice to make it authenticate.