This is nice to know you are enthusiastic to know about Haryana. Well Haryana has a very known and simple meaning itself. This if you divede in two parts will come to know that Hari+yana which means a house of Hari which means Lord Shiva's Palce. So the name comes. Also we can explain in the context about greenliness of its earth and very famous for its agriculture development.
This is what the name Haryana means.
Best of Luck for your future writings for Haryana State. We hope you will contribute good content here.Regards Amit Siwach