Civil Servant (IAS/PCS)

Hi Anurag,
Yes, you may prepare for IAS while pursuing Bsc.
To become an IAS officer you have to appear in Civil Service Exam.
The Civil Service Examination is organized by UPSC every year to recruit candidate for IAS, IPS etc.
Academic Qualification:
The candidate must hold a bachelor’s degree in any field from a well known college or university.
You can pursue graduation in any stream.
Candidates who have appeared at an examination the passing of which would render them educationally qualified for the Commission's examination but have not been informed of the results as also the candidates who intend to appear at such a qualifying examination will also be eligible for admission to the Preliminary Examination.
-Age Limits:
A candidate must have attained the age of 21 years and must not have attained the age of 30 years on 1st August, in the year of examination.
Number of attempts:
Every candidate appearing at the examination who is otherwise eligible, shall be permitted four attempts at the examination.
Selection Process
The Civil Services Exam is a paper based test and consists of two successive stages:
(i) CSAT (Objective type) comprising 2 exams: General Studies
(ii) Civil Services Main Examination (Written and Interview)
CSAT-Prelim:
-Paper 1 is on General Studies
This includes areas like Indian National Movement, Indian Polity, Basic Economic Understanding, and Geography.
While the dynamic part includes current affairs, GK and has no proper definition and syllabus making quite vast.
-Paper 2 includes mathematics, reasoning, analytical ability, and interpersonal skills. Unlike paper 1 which has a static part, paper 2 is dynamic in many sense.
The Main exam will consist of:
Essay
Modern Indian Language,
English
General Studies-I
General Studies-II
General Studies-III
General Studies-IV,
Optional Subject Paper –I
Optional Subject Paper-II
I hope this information helps. Please feel free to revert.
Wish you luck.