About UPSC

About UPSC | Most Pretigious Examination in India

About UPSC

The IAS Exam or the Indian Civil Services Examination is conducted by the Union Public Service Commission (UPSC). The Civil Services Examination is widely considered as one of the toughest and the most prestigious examinations conducted in India.

The complete UPSC syllabus for the Civil Services Examination conducted by the Union Public Service Commission (UPSC). To understand the UPSC exam, one needs to understand the IAS syllabus. This helps to eliminate wasteful efforts like reading unnecessary topics leading to a loss of time and keeps one strictly aligned to the expectations of the UPSC from day one. UPSC syllabus [UPSC Civil Services Prelims and Mains] has been released, along with the official notification for the Civil Service Exam in every year.

The IAS syllabus can be found at the UPSC official website – https://upsc.gov.in/ or scroll down to download the UPSC syllabus pdf for both Prelims and Mains. Aspirants can also download the IAS Syllabus in Hindi |UPSC Syllabus in Hindi.

There is a common UPSC syllabus pattern for services such as the Indian Administrative Service, Indian Foreign Service, Indian Police Service, Indian Revenue Service (Customs and Central Excise) to name a few. However, different stages of the IAS exam have different syllabi.

The UPSC Prelims syllabus focuses on general and societal awareness which is tested by objective-type (MCQ) questions. The UPSC Mains syllabus is much more comprehensive as this stage comprises nine theory papers.

The Civil services exam is conducted in three phases:
Phase 1: Civil Services (Preliminary) Examination (Objective Type)
Phase 2: Civil Services (Mains) Examination (Descriptive Type)
Phase 3: Personal Interview (Personality Test)

Civil Services Preliminary examination comprises of two compulsory papers of 200 marks each (General Studies Paper-I i.e., GS-1 and General Studies Paper-II or CSAT i.e., GS-2). The questions will be of multiple choice, objective type. The marks in prelims will not be counted for final ranking, but just for qualification for main exam.

Structure and Syllabus:

UPSC Prelims Exam The UPSC Civil Services Prelims Examination is composed of two components:

Subject	Total Marks	Duration
I General Studies (GS-I)	200	2 hours (9:30 AM to 11.30 AM)
II CSAT	200	2 hours (2:30 PM to 4:30 PM)

The two papers of the IAS prelims are discussed in detail below:

General Studies-I (GS-I)

General Studies (Generally conducted between 9:30 AM and 11:30 AM). The General Studies test is the first paper of the preliminary examination. This test is intended to test the general awareness of a candidate in a wide range of subjects that include: Indian Polity, Geography, History, Indian Economy, Science and Technology, Environment and Ecology, International Relations and associated UPSC current affairs. Further, the UPSC General Studies (GS) paper consists of 100 questions, while the CSAT paper consists of 80 questions. Both papers have negative marks for wrong answers marked to the tune of 1/3rd of the total marks assigned to that question. To further illustrate this, each correctly answered GS question will be awarded 2 marks. So, 0.66 marks would be deducted from the total for every question that is wrongly marked. Similarly, in the CSAT paper, since we have 80 questions for 200 marks, correctly answered CSAT question would attract 2.5 marks each, while every wrongly marked question would attract a penalty of 0.833 for each such wrong answer, which will be deducted from the total. Questions that are not attempted will not attract any negative marks.

Civil Service Aptitude Test (CSAT)

Civil Services Aptitude Test (CSAT) (Generally conducted between 2:30 PM and 04:30 PM) This UPSC Prelims syllabus for CSAT intends to assess the aptitude of the candidate in solving ‘Reasoning and Analytical’ questions, apart from ‘Reading Comprehension’ and the occasionally asked ‘Decision Making’ questions.
• The ‘Decision Making’ based questions are generally exempt from negative marks.
• The preliminary examination is only meant for screening a candidate for the subsequent stages of the exam.


Broadly, the UPSC Civil Services (Preliminary) Examination consists of two papers of objective type GS-I and CSAT, each of 200 marks (hence totaling 400 marks) and of two hours duration. To qualify for the Civil Services Mains, a candidate must attempt both the papers. The marks in prelims will not be counted for final ranking, but just for qualification for main exam.