Books:
"Lucent's General Knowledge" by Dr. Binay Karna, Manwendra Mukul, Sanjeev Kumar, Renu Sinha, and R. P. Suman: This book covers a wide range of topics including general knowledge, current affairs, and sports knowledge.
"Quantitative Aptitude for Competitive Examinations" by R.S. Aggarwal: This book provides comprehensive coverage of numerical ability topics commonly asked in competitive exams.
"Fast Track Objective Arithmetic" by Rajesh Verma: It's a good resource for practicing arithmetic and numerical ability questions.
"A Modern Approach to Verbal & Non-Verbal Reasoning" by R.S. Aggarwal: This book covers reasoning topics in detail with ample practice questions.
Sports Knowledge Books: Depending on the specific sports included in the recruitment, you may find books dedicated to the rules, history, and achievements of those sports. For example, if cricket is included, you can find books like "Wisden Cricketers' Almanack" or "The Essential Wisden: An Anthology of 150 Years of Wisden Cricketers' Almanack".
Websites:
Official Websites: Check the official website of Northern Railway or the Railway Recruitment Cell (RRC) for exam notifications, syllabus, and other relevant information.
Online Learning Platforms: Websites like Khan Academy, Coursera, and Udemy offer courses and tutorials on various topics such as general knowledge, reasoning, mathematics, and English language skills.
Sports Websites and Forums: Websites dedicated to sports news and information like ESPN, Sports Illustrated, or dedicated sports forums can provide valuable insights into recent developments, rules, and achievements in different sports.
YouTube Channels: There are many YouTube channels that offer tutorials, lectures, and tips for competitive exams. Look for channels that focus on general knowledge, reasoning, mathematics, and English language skills.
Educational Apps: There are several educational apps available for both Android and iOS devices that offer study materials, practice tests, and quizzes for competitive exams. Some popular apps include Gradeup, Testbook, and Oliveboard.
Library: Visit your local library to find books and study materials related to general knowledge, sports, reasoning, mathematics, and English language skills.