Here we are suggesting some good books for preparing SBI PO exam or any other PO/Clerk Exams.
Quantatitive Aptitude: Quantative Aptitude By R.S. Agarwal
English: High School grammer & Composition By Wren & Martin.
General Awareness: Read news paper, Magazine Banking Cronology that's enough,
Reasoning: Use Arihant Publication Reasoning for banks or Upkar Publication reasoning for banks.
All above books are best books of all time, don't wonder too much other wise, it may possible that you got too much material that you just can't finish & at the day of exam you realize that you just study too much that may not be relevant to the PO exam. So be very precise & use your time efficiently.
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