UPSC organizes the civil Service exam every year at the national level for the following post in Central government.
IAS (Indian Administrative Service)
IPS (Indian Police Service)
IRS (Indian Revenue Service)
The competition for the CS exam will be quite tough because lots of candidates take part in this exam across the year.
Important dates of Civil exam
Educational qualification for Civil exam
You must be graduated in any stream from recognized university or its equivalent.
UPSC allows the candidates to apply for civil exam who are appearing in final year of graduation.
There is no restriction of marks in Civil exam.
Age qualification for Civil exam
You must be in age of 21 to 30 years.
As you are choosing math and statistical as optional subject.
So definitely if you do preparation with dedication and concentration you can score good in Civil mains exam.
Actually friend all thing is depend at your preparation. If you work hardly in right direction under experienced faculty. You will get success soon.
So work hard and it is only single key of success, there is no shortcut.
For more info visit http://upsc.gov.in