Hello,

UPSC Civil Service is conducted for recruitment of various posts such as Indian Administrative Service, Indian Police Service, Indian Revenue Service, Indiam Railway Service etc, so you need to appear for this exam and the syllabus is the same, it's the ranking based on which posts are given, for instance in 2018 the candidates belonging to general category got IAS below 100th rank, for reserved category this rank will go higher in number.

UPSC Civil Service Exam consists of three stages-

Preliminary
Mains
Interview

To give you a brief about the exam;

Preliminary consists of 200 Marks for each paper. It mainly consists of GS Paper-I with topics such as History of India and Indian national movement, Indian and World geography, Economic and social development- sustainable development, poverty,inclusion demographics, social sector initiatives etc,Indian polity and governance-constitution,political system,Current Events nationally and Internationally, General Science,General Issues on environmental ecology,biodiversity and climate change. you just need to score the required cut offs against your category in order to pass this paper.

And then we have qualifying CSAT(you need to score 33%, that means 66 marks out of 200) , it includes topics such as basic numeracy, comprehension, logical reasoning and analytical ability, general mental ability, decision making and problem solving, interpersonal skills including communication skills. Both consists of 200 marks, MCQs based. Prelims is mcq based, but still it requires knowledge coupled with speed in order to ace it, its numbers are not added in the final list,


Coming to Mains it's more of a subjective type, you need to write answer for Four General Studies Paper such as

GS-I includes Indian Heritage and Culture,History and Geography of the World and Society,
GS-II includes Governance, Constitution, Polity, Social Justice and International Relations,
GS-III includes Technology, Economic Development, Bio-Diversity, Environment, Security and Disaster Management,
GS-IV includes Ethics, Integrity, and Aptitude

There are two optionals, one essay, two language paper, there are total nine papers here. 250 marks for each paper, total is 1750 marks followed by Personality Test of 275 marks.

In order to start your preparation, you need to be acquainted with the syllabus, read The Hindu on a daily basis, start with NCERTS for a strong base, and then move towards standard books, these steps are important in order to initiate your preparation, and later on writing practice, solving previous year paper, mock papers,test series become very important part of this preparation.

Hi

To become an IRS officer, you need to qualify UPSC examination as it is the examination for getting into IRS, IAS, IPS etc. The syllabus is same for IAS ,IRS IPS etc as it is  a single examination but different services are provided to you on the basis of rank obtained by you in UPSC examination

UPSC  Examination is conducted into 3 levels-

prelims exam
Mains exam.
Interview

Prelims syllabus

It has two papers - General Studies Paper I and General Studies Paper-II.

Syllabus is :-

Indian Polity,
History,
Indian Economy,
Science and Technology,
Environment and Ecology,
International Relations and associated current affairs etc.

Similarly , you can get complete Syllabus of UPSC for both prelims and Mains examination by going to our page, the link is given below

https://competition.careers360.com/articles/upsc-ias-syllabus

Thank you