Main Exam Optional Subjects list

I want to know about name of all optional subject for Indian administrative service mains examination organized by union public service commission ?

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Here I am giving you name of all optional subject for Indian administrative service mains examination organized by union public service commission below :

UPSC Main Examination - Optional Subjects
General Studies for IAS Exams
Essays for IAS Exams
English Qualifying for IAS Exams
Indian Languages for IAS Exams
Mathematics subjects for IAS Exams
Agriculture
Animal Husbandry and Veterinary Science
Botany
Chemistry
Civil Engineering
Commerce
Economics
Electrical Engineering
Geography
Geology
Indian History
Law
Management
Mechanical Engineering
Medical Science
Philosophy
Physics
Political Science
Psychology
Public Administration
Sociology
Statistics
Zoology
Anthropology

Arabic
Assamese
Bengali
Bodo
Chinese
Dogri
English
French
German
Gujarati
Hindi
Kannada
Kashmiri
Konkani
Maithili
Malayalam
Manipuri
Marathi
Nepali
Oriya
Pali
Persian
Punjabi
Russian
Sanskrit
Santali
Sindhi
Tamil
Telugu
Urdu

Exam pattern :
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