Companies Act 2013 is the prime act regulating all types of companies whether it is private company or public company or otherwise.
It provides process of incorporation of companies, functioning of companies and if the members feels it necessary, the end of company.
Many provisions in company law provide for the intervention or assistance of professional like CA, CA, CMA or other. Even for the starting a company a practicing professionals sign is required to establish the bona-fides of the particulars of the incorporation form.
There are various occasions where a company requires a experts guidance like appointment of directors or calling of General Meeting etc.