Starting a Consultancy in Chennai: What Steps Are Needed for Licensing and Registration?

My friend is opening a new consultancy and placement company. It's been 7 months since it started successfully in Chennai. This is a proprietary company. I need the best ideas and information from you legends. What are all the steps to get a license and register this consultancy? Kindly, please share your valuable information. We would like to show this license to our candidates and clients. Kindly, please help.

Steps to Get a License and Register a Consultancy

1) What documents are needed?
2) What is the name of the license?
3) What is the procedure?
4) Is the license compulsory or not?

Please provide suitable answers.

Please apply for Shop & Establishment Certificate/license first.