Help related to civil exams

First of all you have to clear prelim i.e. CSAT consisting of two papers 

1)General Studies-200 marks

2)General Aptitude-200 marks

Then after qualifying it,You have to give mains (2000 marks)

1)GS-2papers-300 each

2)Optionals-2-300 each

3)essay-200

4)English-300

5)One of the languages to be selected from 8 th schedule-300

Then,after qualifying mains exams,you will go for interview round-300 marks

Total exam=2700 marks.Many good coachings are there in Delhi..Someone of them are Rau's,Vajiram & Ravi,etc..

This is what I know.For a more detailed knowledge,please visit www.civilserviceindia.com.

Thank you so much gaurav..and what if I want to do self study..Can you refer me some books??