Disha 31 Topic-Wise Upsc Civil Services Ias Prelims Previous Year Solved Papers 1 and 2 (1995-2025) 16th Edition English Medium
Total-776 Pages
Part-I Strategy & Planning Resources

Part-II General Studies Paper 1 Ias Prelims
Unit A History of India
1.Ancient History
2.Medieval History
3.Modern History
4.Indian National Movement

Unit B Geography (India & World)
1.Physical Geography
2.World Political Geography
3.Geography of India
4.Agriculture

Unit C Indian Polity & Governance
1.Constitution & Political System
2.Government & Administration (India & World)
3.Panchayati Raj & Public Policy
4.Judiciary & Legal Rights, Issues etc.

Unit D Economic & Social Development
1.Structure of Indian Economy & Demographics
2.Pverty, Planning, Finance and Economic/ Social Development
3.Agriculture in the National Economy
4.Indian Industries & Trade
5.The Tertiary Sector in the Indian Economy

Unit E General Science & Ecology World
1.Physics
2.Chemistry
3.Biology
4.Issues on Environment, Ecology, Biodiversity & Climate Change
5.Science & Technology

Unit F General Knowledge
1.World Panorama
2.Indian Panorama
3.Sports and Games

Unit G Current Affairs
1.International 
2.National
3.Sports and Games

Part-III Aptitude (Paper-2 CSAT) IAS Prelims
Unit H Mental Ability & Management Ability
1.Mental Ability, Analytical & Logical Reasoning
2.Arithemetic
3.Geometry & Mensuration
4.Permutation, Combination & Probability
5.Time and Distance & Time and Work
6.DI
7.General Comprehension
8.English Language (Comprehension)
9.Interpersonal Skills, Communication & Decision Making

Part-IV IAS Mains Unsolved Questions
Unit I 1.Upsc Mains Essay
2.Topic Wise Mains General Studies Paper (2013-2024)