Which field should I choose after 10th standard to become an IAS officer as with my interest in Social studies?

If you are very clear about becoming an IAS officer and you are interested in Social studies, then I would prefer Arts as your stream of study after class X. You don’t need to go for any professional study to become an IAS officer.

After higher secondary, you are required to obtain graduation in any discipline from a UGC recognized university. Bachelor degree is the minimum qualification required to apply for the IAS civil service exam.

All India combined competitive examination for Civil Service comprises of two stages. They are
Preliminary Examination
Main Examination

Preliminary Examination--

-Preliminary examination is usually conducted in the month of May/ June every year.
-The exam consists of two papers, general studies and an optional subject.
-There will be questions for 150 marks from general section and 300 marks from optional subject.
-Candidates can choose their optional subject from the list given below.

Law
Mathematics
Mechanical Engineering
Medical Science
Philosophy
Economics
Geography
Geology
Indian History
Physics
Political Science
Agriculture
Animal Husbandry and Veterinary Science
Botany
Chemistry
Civil Engineering
Commerce
Psychology
Public Administration
Electrical Engineering
Sociology
Statistics
Zoology

Candidates who have cleared the preliminary examination are eligible for the main exam.

Main Examination---

-Main examination is of descriptive type.
-It consists of nine papers.
-Time duration for each paper is three hours.
-It comprises of the following papers.
One Indian Language for 300 marks
English for 300 marks
General Essay for 300 marks
General Studies of 300 marks
Any two optional papers for 300 marks each
Personal Interview

The final selection for Indian Administrative Service is carried out on the basis of personal interview.