The book is useful for every reader in general and for the aspirants of various competitive examinations, viz. UPSC Civil Services, CDS, NDA, etc. exams, State Public Service Commission’s exams., SSC, Railway Recruitment Boards (RRBs), SCRA, Bank P.O./T.O., LIC/GIC/OIC (AAO), RBI grade ‘A’ and ‘B’ Officers, CAT, MAT, CLAT, MBA, BBA, MCA, BCA, entrance examinations etc. in particular.