This is the top most book of General knowledge by lucent's.As because this cover all the syllabus of competitive exam like rrb, upsc, ca, cs, bank PO, ssc etc.this book contains the topic like history, geography, politics, economics, physics, chemistry, biology, miscellaneous and about computer knowledge. which is vey helpful in the competitive exam.
This book gives us a deep and details konwledge for each topic of each chapter contents. There are many books available in the market but mostly people choose the lucent gk book because people believed in that book.
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