Hello Siksha,

You can take RS Agrawal for all the three sections i.e quants, verbal, logical reasoning.

For general knowledge.You can refer Manorama year book.

RS Agrawal book will surely help you to clear all your basic concepts.And once that is done.Then you can attempt any question confidently.

All the best.

For general knowledge…you should read newspapers daily apart from referring the book.