Gujarat Public Service Commission (GPSC) is for state government jobs in Gujarat. Most of students are not war of this unless you read Liberty like magazine. GPSC is an old organization made in 1960.
If any vacancy is in GPSC you can know it by reading Gujarat Rojgar Samachar and News papers. If you know about this website you can directly go to GPSC website and get the advertisement. To see results and application form you can get here.
To get a job in GPSC one need various qualification for various vacancy. But if you have completed 12th and B.A. you are ready to go.