Hi,
The educational eligibility for applying to IPS exam is graduation degree from any stream.
So you can choose any graduation degree. The civil services exam is conducted in three phases
Preliminary
Mains
Interview
You can select any Gradution degree to appear for the exam. But if you want to study something in graduation that helps you in civil services exam then you can select any graduation course you like whose curriculum covers the syllabus of civil services.
Hope this helps.
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