Hello dear student

• You can't do after completing 12th. You have to complete your graduation first then only you are eligible for giving the mpsc exam.
• Planning and strategy is very important when you are going to give mpsc exam.

For more information about MPSC examination please visit the link.

https://news.careers360.com/maharashtra-psc-state-service-prelims-exam-dates-2021-released

Hope that's helpful

Best of luck