Hello,

RBI Grade B Exam is conducted in three stages:

Phase I consists of four sections such as General Awareness for 80 marks, Quantitative Aptitude for 30 marks, Reasoning for 60 marks, and English Language for 30 marks.

Recommended Books:

For Quant Section, you can use How to prepare for Quantitative Aptitude by Arun Sharma, the level of questions are very high comparatively to management exams, it'll provide you a good grasp over all the topics.

For Reasoning, you can use Verbal and Non-Verbal Reasoning by MK Pandey or Analytical Reasoning by MK Pandey.

For General Awareness, read two newspaper on a daily basis such as The Hindu and any business paper such as The Economic Times, you can also read magazines like Pratiyogita Darpan, there are many competitive exam sites which offer monthly compilations which  you can use.

For English Section, you can use Wren and Martin for grammar, for vocabulary use Norman Lewis's 'Word Power Made Easy', for practice purpose you can use Objective General English by SP Bakshi.

Phase II consists of three papers such as Economics and Social Issues (objective type) for 100 Marks, English Skills for Descriptive Writing , and Finance & Management. Each section consists of 100 marks and for a 90 minutes duration.

Recommended Books:

For Economics section, you can use Indian Economy by Ramesh Singh or the ones by Uma Kapila, Mishra Puri. Sociology book by CN Shankar Rao,use magazines like Yojana, The Economics and Political Weekly, RBI Bulletins, reports of World Development Forum and Economy Survey of India, for Financial Management you can use Prasanna Chandra:Theory and Practice.

There are many sample papers for each sections especially for phase one available freely in various competitive exam sites, you can use them. RBI Grade B exam is one of the most coveted exam, speed and accuracy is the key to success here, You can go through these sites which will offer a lot of tips regarding preparation process. In addition to these, search Youtube as well, there are many channels to guide you, especially for people from non-finance background, the stage II exam can be challenging and numericals are there as well, you can go through strategies shared by previous year toppers regarding this, this will help you a lot in devising your own.