Sujet : What is the difference between UPSC and State PSC?

If you have just graduated and wish to serve the country tirelessly, to bring the changes you wish to see by working as a civil servant, UPSC is the way to go. But What is UPSC? What is its history? How to start preparing for it? Elite IAS has the answers to all your questions and helps you get a headstart when it comes to preparing for the UPSC.