Hello,

Eligibility criteria for IAS:

• Only Indian citizens with valid identity proof are eligible to apply for UPSC Civil Services Exam.
• Candidate’s age must be between 21 years to 32 years. He/she should be born not before than August 2, 1987 and not after August 1, 1998.
• Candidates must be a graduate from any university recognized by the UGC.

Candidates can apply online on UPSC’s official website

https://www.upsc.gov.in/

Candidates need to pay an application fee of Rs. 100/-

The admit card of UPSC Civil Services Exam 2021 will be issued three weeks prior to the commencement of the exam.

https://competition.careers360.com/articles/upsc-ias-syllabus

you can refer to this link for the syllabus.

Hope this helps!!

hi,

see the  eligibility criteria to appear in IAS or civil service exams is candidates must have completed bachelors course in any discipline from a recognized education board. now if you pursue b.sc course in computer science that would also makes you eligible to appear in IAS exam. however there is various papers and candidates have to choose as per their background. ias exam has divided in to three steps, prelims, mains and interview rounds. prelims exams has two papers :

IAS Exam Paper – I: General Studies

IAS Exam Paper – II: General Studies (CSAT)

for ias mains exams, following papers have to attempt:

Paper – A    Compulsory Indian Language

Paper – B    English

Paper – I    ESSAY

Paper – II    General Studies I

Paper – III    General Studies II

Paper – IV    General Studies III

Paper – V    General Studies IV

Paper – VI    Optional Paper I

Paper – VII    Optional Paper II

so you must understand exams is quite tough and need special preparation and training. so in-spite of your science background you have to study separately for ias exam solving and analyzing the syllabus and old question papers.