Can I choose optional subjects in Combined State Civil Services examination organized by Union public service commission ??

Yes you can choose optional subjects in Combined State Civil Services examination organized by Union public service commission ..

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

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

Scheme of CS (Preliminary) Examination
The Preliminary Examination consists of two papers of objective type (multiple-choice questions) carrying a maximum of 400 marks.

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