Hello,

In order to appear for UPSC Civil Service exam, candidates need to be 21 years old and passed Bachelor's Degree in any discipline from a recognized university, those in the final year too can appy. So, yes doing BCA definitely makes you eligible for this this.

To provide you a brief information regarding this

UPSC Civil Service Exam consists of three stages

Preliminary consists of 200 Marks for each paper in MCQ format.It mainly consists of GS Paper-I consists of the following topic such as History of India and Indian national movement, Indian and World geography, Economic and social development- sustainable development, poverty,inclusion demographics, social sector initiatives etc,Indian polity and governance-constitution,political system,Current Events nationally and Internationally, General Science,General Issues on environmental ecology,biodiversity and climate change . you just need to score the required cut offs against your category.

And then we have qualifying CSAT for which you need to score 33% that is only 66 marks, its syllabus includes topics such as basic numeracy, comprehension, logical reasoning and analytical ability, general mental ability, decision making and problem solving, interpersonal skills including communication skills. Prelims numbers are not added in the final list, but still it requires knowledge coupled with speed in order to ace it.

Coming to Mains it's more of a subjective type, you will have to write answer for Four General Studies Paper such as

• GS-I includes Indian Heritage and Culture,History and Geography of the World and Society,
• GS-II includes Governance, Constitution, Polity, Social Justice and International Relations,
• GS-III includes Technology, Economic Development, Bio-Diversity, Environment, Security and Disaster Management,
• GS-IV includes Ethics, Integrity, and Aptitude),
• In addition to four GS Papers, there are Two Optionals, One Essay, Two Language Paper, there are total nine papers here. 250 marks for each paper, total is 1750 marks.

Last stage is Personality Test of 275 marks.

Yes you can give IAS exam after BCA.