The civil services main examination is not just about acquiring knowledge on various topics related to the syllabus. The way one writes the answers in the examination is also a key factor in deciding the success of the aspirant. Every question has to be carefully studied to understand the requirement. The challenge then is to express your ideas effectively within the specified time and word limit. In this context, this book will be of valuable help in understanding the way to write answers. Prepared by a team of subject experts, this collection of past eight years' solved papers of General Studies papers I-IV will be of valuable help to aspirants to hone their skills to write quality answers. At a Glance GS Paper I: Solved Papers 2013-2020 GS Paper II: Solved Papers 2013-2020 GS Paper III: Solved Papers 2013-2020 GS Paper IV: Solved Papers 2013-2020About the AuthorShri G Subba Rao is a retired IAS officer of the 1965 batch and has long experience extending over four decades in governance and public administration. He has worked in diverse areas of development and regulatory administration at the Centre and at the State level, both at levels of policymaking and implementation. Shri Rao holds an MA in Economics from Andhra University, MA in Rural Development from the University of East Anglia, United Kingdom, and a post-graduate diploma in Public Administration from the Indian Institute of Public Administration (IIPA), New Delhi and has a keen interest in western philosophy. Shri P. N. Roy Chowdhury is a retired IAS officer of the 1977 batch and has over forty years of experience in teaching, public service and at the highest levels of corporate management. He has a Masters in Applied Mathematics from Calcutta University. He taught in undergraduate Honours courses and later joined the IAS in 1977. In the middle of his career, he completed his M.Sc. in Finance from Strathclyde University, Glasgow, UK and an MBA from the University of Rochester, New York, USA. Post-retirement, he joined the Adani Group and is presently working with the Group as Advisor, Strategic Management. D V K Rao (IOFS), a former civil servant is a Member (retd) of, Ordnance Factory Board (Ministry of Defence). A postgraduate from the prestigious Indian Institute of Public Administration (IIPA), Delhi, he also takes a keen interest in matters related to Indian Polity and Constitution of India. Dr Uddipan Mukherjee is presently an Indian Ordnance Factories Service (IOFS) officer at the Ordnance Factory Board headquarters, Kolkata. He cleared the UPSC Civil Services Examination 2006 with an All India Rank of 210 with a History as an optional. He holds a PhD from the Tata Institute of Fundamental Research, Mumbai. Kantesh Mishra is an IPS officer of the Bihar 2015 batch.