As per your request, I am giving you minimum eligibility criteria for the Indian Administrative Service exam.

Eligibility Criteria for IAS

Nationality:

Candidate must be citizen of India

Education:
Candidate need to pass gradation degree in any discipline form recognized university

Age Criteria:

Age of the candidate should be between 21 years to 30 years

Selection Criteria: Selection of the candidate depends on followings

Prelim Exam
Main Exam
Interview

Important Dates
Date of Notification: 16 May, 2015
Last Date to Apply: 12 June, 2015
Exam Date: 23 August, 2015
Civil Services (Main): 18 December, 2015

Here, I am giving you syllabus for the IAS Prelim exam.

CSAT Paper I: 200 Marks; Duration: Two Hours; Number of Questions: 100
Current Affairs: 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 (no subject specialization required)
General Science

CSAT Paper II: 200 Marks; Duration: Two Hours; Number of Questions: 80
Comprehension
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)
English Language Comprehension skills (Class X level).
Questions relating to English Language Comprehension skills of Class X level. (will be tested