RBI grade B has different than all other banking exams. In RBI grade B you will find 200 questions in Phase-I from subjects like Reasoning,Quant, English and General Awareness and the major difference is in Phase-II which it consist of three papers:

RBI Grade B Syllabus & Exam Pattern Details:

Paper I – Economic and Social Issues (Objective type)
Paper II – English (Writing Skills) ( Descriptive type)
Paper III – Finance and Management (Objective type)
So, you can see Phase I is something you are in habit of doing like this is something you face in each and every banking exams but Phase II is something that requires special, focused and strategical preparation. Also, the competition is with all those who are presently working with the various bank so, this fight is going to be a tough one. For this one should make proper strategy considering exam pattern and topics.