I want to open a travel agecy but on a small scale. I want to know what are the things I need & what is the procedure of it

If you want to do this on a small scale like out of your home, then you might want to consider purchasing the book that is advertised on the following site. How to Start a Home BAsed Travel Agency Table of Contents

I know someone who is a home based travel agent. There are a lot of things involved. Really too much for the scope of an answer here.

You also might want to check out the information on the following site and other links that are on it.

Startups | Travel agency