How to prepare Science and Technology for UPSC IAS Exam By Yuvraj IAS

How to prepare Science and Technology for UPSC IAS Exam By Yuvraj IAS

As everyone is aware that the UPSC Prelims Exam is to be conducted on 2nd June 2019, and now it less than two months for the prelims, here we bring some last moment and easy tips to prepare for this section of the prelims exam.

Some basic tips to follow in your UPSC Prelims Exam preparation
  • Understand and learn the basic concepts. Don’t try to mug up facts.
  • Correlate syllabus to current affairs. Read the daily newspapers and PIB. Once you spot a new development in science and tech in India or affecting India, go through that article well. After that, understand the basic science involved in that development. Then, go through NCERTs or any basic science book to understand what the concept is all about. Current affairs is of the utmost importance when it comes to preparing for the science and technology segments.
  • Here, range is more important than depth. Learn the major keywords on that topic. You don’t have to go into the details.
  • Clarity is very important. This section is both static and dynamic.
  • Go through the schemes and programmes involved in that field.
  • For UPSC Prelims: Go through NCERTs and current affairs for the basic sciences.
  • For UPSC Mains: Focus only on current affairs.

How to prepare Science and Technology for UPSC exam?

  • Read/prepare notes
  • Read NCERTs
  • Check UPSC previous year question papers
  • If a Science subject is your optional subject, have a definite strategy
  • Follow daily news analysis
Why Science and Technology important for UPSC Exam?
  • UPSC tests the candidates’ basic knowledge in Science and Technology
  • How much they understand on how the world around us work
  • Candidates with Scientific knowledge will play crucial role in building the new India by applying the rational logical and analytical decision making and implementing in policies devised by you as a civil servant

E.g. let us take the e-Governance

Science and technology plays crucial role in the e-governance

Analysis of Previous years UPSC Question Papers 
YearsNumber of Questions asked

If we observe the previous year question paper it is evident that this section of Prelims Syllabus almost carries a weightage of more than 20-30%.


A glimpse at Science and Technology topics
  • Scale of Universe: Particle, atom, cell, human, Earth, Solar System, Milky Way, Visible Universe
  • Branches of Science: Formal Science, Physical Science, Life Science, Social Science, Earth and Space
  • Hierarchy of Science: Logic, Mathematics, Physics, Chemistry, Cellular Biology, Functional Biology, Psychology, Geoscience, Sociology, Astronomy.


Some quick tips on basic strategy for S&T
  • Focus on issues in news for UPSC Current Affairs
  • One should thorough with the basics
  • Should be aware of at least 5-6 keywords per terminology
  • Issues in news should be correlated with the syllabus
  • Make notes for current affairs on your own and frame probable questions that may be asked in the prelims exam by correlating the issue with the UPSC Syllabus.

This method of approach is not only for science and technology but can be applied to all the subjects of prelims syllabus of UPSC.

Science and Technology Books for UPSC

The most basic books in the science subjects are the NCERTs. Apart from these, you should keep an eye on the newspapers for any news related to science and technology, especially with respect to India. You can also go through a few other books which are especially tailored for the UPSC exam.

  1. Science and Technology in India – Kalpana Rajaram
  2. General Science For Civil Services Preliminary Examinations – S.A.Majid
  3. 1000 Plus Questions on General Science – TMH

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