The UPSC IAS Main exam has becoming topic-oriented in the last few years and that is the reason the candidates need a list of the important topics for IAS Main Exam preparation. The IAS aspirants should adopt the approach of comprehensive study of various topics and subjects for IAS Mains Exam.
The requirement of the questions is more induced towards the analysis of the event/topic with the multidisciplinary approach which can be used in the overall development of the nation and the betterment of the society. Following are some of the important topics for IAS Main Exam:
IAS Main GS Paper II
Most Important Government Schemes II for IAS Exam 2018
Most Important Government Schemes I for IAS Exam 2018
Provisions of National Intellectural Property Rights (IPRs)
National Electricity Policy: Crux of PRS Report

Asia Africa Growth Corridor: Key features & Benefits to India
NITI Aayog recommendations on Rural Health Care System
Highlights of NITI Aayog’s Draft National Energy Policy 2017
National Green Tribunal of India for IAS
Police Reforms in India: Crux of PRS Report
Effectiveness of National Disaster Management Authority in India
Most Important Government Schemes for IAS Exam 2017
The Enemy Property (Amendment and Validation) Ordinance
Land Acquisition Bill: Objective and analysis
Nexus of Politician, Mafia and Bureaucrats
Diplomatic Immunity under Vienna Convention and Local Laws
India’s Infrastructure needs and the Smart Cities Mission
Pandit Deendayal Upadhyay Shramev Jayate Karyakram
IAS Main GS Paper III
Booming E-commerce and the traditional Business model in India
Slowdown in Chinese Economy and its impact on India and World
IAS Main Exam GS Paper I
Uneven Monsoon and its Effects on Indian Economy
Changing Climate and Food Security