As you want to get the details of subject which will be better for Computer Science student in IAS so here is the information of the same for you:

I want to tell you that it all depends on your interest

There is no compulsion on the choosing of subjects

Candidates must have passed graduation only

List of subjects:
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

Contact Details:
Union Public Service Commission
UPSC,
Man Singh Road Area,
New Delhi,
Delhi 110069
India

Map Location: