Hello aspirant,

To become an IAS officer, you need to complete your graduation.

• The graduation can be from any field, any subjects. You can do BSc degree or else a MBBS degree.
• There is no such criteria to complete a particular degree. Only criteria is to complete your graduation. Then only you are eligible to write the civil service examinations.
• For more preparations, you can join a coaching or self prepare. Study all the subjects according to the papers of civil service.

Hope that helps.