Am I eligible to apply for Indian Administrative Services examination during B tech computer science 3rd year ?

No you are not eligible to apply for Indian Administrative Services examination during B tech computer science 3rd year . to apply for IAS exam you have to passed B tech degree examination.

Required eligibility :
You have to passed graduation level degree in any discipline from a well recognized university

Age - limits:
21-30 years as on 1st August of the year of Examination.

Scheme of CS (Preliminary) Examination
The Preliminary Examination consists of two papers of objective type maximum of 400 marks.
General Studies Paper - I 200 Marks
General Studies Paper - II 200 Marks

Syllabus :
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 specialisation
General Science.


IAS Preliminary Examination CSAT Paper - 2 (APTITUDE)

Paper II- (200 marks) Duration: Two hours
Comprehension
Interpersonal skills including communication skills;
Logical reasoning and analytical ability
Decision-making and problemsolving
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).

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