What is the eligibility criterion to give the UPSC exam?

I want to give the UPSC exams and for that I want to get the details of what is the eligibility criterion to give the UPSC exam so can you provide me that?

[Arun Vats]

As you want to get the details of what is the eligibility criterion to give the UPSC exam so here it is for you:

I want to tell you that it is not possible for me to give the eligibility criteria of all the exams of UPSC so please here do mention the name of the exam

List of exams of Union Public Service Commission:
Combined Medical Services Exam
Combined Defence Services (I) Exam
National Defence Academy & Naval Academy Exam (I)
Civil Services (Preliminary) Exam
Engineering Services Exam
Indian Forest Service Exam
National Defence Academy & Naval Academy Exam
Combined Defence Services (II) Exam
Central Police Force (Assistant Commandant) Exam
Civil Services (Main) Exam
Indian Economic Service/Indian Statistical Service Exam
Geologists Exam
Special Class Railway Apprentices Exam
CISF (AC) Limited Departmental Examination

Here for your reference I am giving you the eligibility criteria of Civil Services exam:

Nationality:
A candidate must be either :—
a citizen of India, or
a subject of Nepal, or
a subject of Bhutan, or
a Tibetan refugee who came over to India before 1st January, 1962 with the intention of permanently settling in India, or
a person of Indian origin who has migrated from Pakistan, Burma, Sri Lanka, East African countries of Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Zaire, Ethiopia and Vietnam with the intention of permanently settling in India.

Age Limit:
Candidates must have attained the age of 21 years and must not have crossed 30 years

Minimum Educational Qualifications:
Candidates must have passed graduation from any of Universities incorporated by an Act of the Central or State Legislature in India

Number of Attempts:
General: 4
OBC: 7
SC and ST: No Limit

Here for your reference I am giving you the syllabus of IAS prelims:

Syllabus of Paper I -(200 marks) Duration : Two hours
Current events of national and international importance.
History of India and Indian National Movement.
Indian and World Geography-Physical, Social, Economic.
Geography of India and the World.
Indian Polity and Governance-Constitution, Political.
System, Panchayati Raj, Public Policy, Rights Issues, etc.
Economic and Social Development-Sustainable.
Development, Poverty, Inclusion, Demographics, Social.
Sector Initiatives, etc.
General issues on Environmental ecology, Bio-diversity and Climate Change - that do not require subject specialization and Climate Change - that do not require subject specialization.

Syllabus for Paper II-(200 marks) Duration: Two hours
Interpersonal skills including communication skills;
Logical reasoning and analytical ability
Decision making and problem solving
General mental ability
Basic numeracy (numbers and their relations, orders of magnitude, etc.) (Class X level), Data interpretation (charts, graphs, tables, data sufficiency etc. - Class X level)

Scheme of CS (Preliminary) Examination

The Preliminary Examination consists of two papers of objective type (multiple-choice questions) carrying a maximum of 400 marks.
The Question Papers (Test Booklets) are set in English & Hindi

General Studies Paper - I 200 Marks
General Studies Paper - II 200 Marks

Scheme - CS (Main)

Paper-I

One of the Indian Languages to be selected by the candidate from the 18 languages included in the VIIIth Schedule to the Constitution (Qualifying Paper) 300 Marks
Paper-II English (Qualifying Paper) 300 Marks
Paper-III Essay 200 Marks
Papers IV & V General Studies (300 Marks for each paper) 600 Marks
Papers VI, VII, VIII & IX
Any two subjects (each having 2 papers) to be selected from the prescribed optional subjects (300 marks for each paper) 1200 Marks
Total Marks for Written Examination 2000 Marks
Interview Test 300 Marks
Grand Total 2300 Marks

List of Optional Subjects - CS (Main) - (Total 25):
Agriculture
Management
Animal Husbandry & Vetinary Science
Mathematics
Anthropology
Mechanical Engineering
Botany
Medical Science
Chemistry
Philosophy
Civil Engineering
Physics
Commerce & Accountancy
Political Science & International Relations
Economics
Psychology
Electrical Engineering
Public Administration
Geography
Sociology
Geology
Statistics
Indian History
Zoology
Law

List of Optional Subjects (Literature) - CS (Main) - (Total 26):
Arabic Gujarati Manipuri Sanskrit
Assamese Hindi Nepali Sindhi
Bengali Kannada Oriya Tamil
Chinese Kashmiri Pali Telugu
English Konkani Persian Urdu
French Marathi Punjabi
German Malayalam Russian