Hello Srini and welcome to the forum!
There are many guides on the forum here on how to setup SambaPOS for your business. Just take a look at the tutorials category, and also you can search for what you are looking for, there are literally thousands of posts by users just like you who found solutions to meet the needs of their business from the forum.
You can start at the welcome topic which has many links to other related articles, as well as information on installation.
If anything isn’t clear, you can post a new topic on the forum along with screenshots or info on what you are trying to achieve. Some of the experienced forum members will gladly help you via the forum.
If you are looking for personal, paid support, training or setup assistance, you may post a topic in the Ads category. My company also provides paid professional services if you require this.