ForumIAS LATEST
- Prelims Test Series (PTS) for Prelims 2027 starts 11th Oct. 2026 Click Here to know more →
- [Pre-order] Ethics Redbook 3rd Edition: Delivery starts from 10th October onwards Click Here to Read More →
- 21 Sept. | Forum Residential Coaching (FRC) for UPSC preparation Click Here to know more →
- 21 Sept. | GS Advance Program (GSAP) for UPSC 2027 Mains starts from 10th Oct. Click Here to Read More →
The Basics Guide:
The single most important thing that I know about the Mains Examination is that you have no time to waste. The Union Public Service Commission has reduced the gap between Mains and Prelims to about 3 months in the last few years. Hence duration is the most important phase of your UPSC preparation. Below are a set of articles that we have collected for your benefit in this regard.
- 8 Rules to follow in your Civil Services Mains Examination
- That “Extra” Thing you need in your answer for scoring high in General Studies – IAS Topper tells you
- 100 days to Mains – Strategy
General Studies Preparation (by ForumIAS and Toppers):
- The Basic Strategy to Crack CS Mains : by ForumIAS
- How to Prepare for General Studies Papers 1 : by ForumIAS
- How to Prepare for General Studies Paper 2 : by ForumIAS
- How to Prepare for General Studies Paper 3 : by ForumIAS
- How to Prepare for General Studies Paper 4 : by Prabhat Malik
- How to Prepare for the Essay paper : by Arun Raj
- How not to fail your CS Mains compulsory qualifying Language papers : by ForumIAS
- Book list for CS Mains (representative)
- How to deal with current affairs : by ForumIAS
Optionals Preparation (by Toppers):
- History :
- Geography :
- Public Administration : by Prem Ranjan Singh / by Arpit Sagar / by Prabhat Malik
- Political Science and International Relations :
- Law :
- Sociology :
- Philosophy : by Sanskriti Jain
- Anthropology :
- Agriculture :
- Botany :
- Zoology :
- Chemistry :
- Physics :
- Geology :
- Statistics :
- Medical Science : by Dr. Shaleen
- Mathematics : by Yogesh Kumbhejkar
- Hindi Literature :
- English Literature :
- Civil Engineering :
- Mechanical Engineering :
- Electrical Engineering : by Prakash Rajpurohit
- Commerce and Accountancy :
- Economics :
- Management :
Interview Preparation (by Toppers):
- Preparation tips
- The question of ‘personality’
- Mock sessions
- What to wear
- Final moments before your interview
- Moment of truth
- Interview Tips from Varun Kumar [AIR – 3]
- Integrated approach by S. Nagarajan, IAS
- Tips by Santosh Kumar Misra, IAS
- Tips by Prince Dhawan
- Etiquette
- Inside the board room
- Expected questions
- Know your state
- Hobbies
- FAQs
- List of Interview Scripts of IAS Toppers
- UPSC / IAS Civil Services Interview CSM 2014 Guide



