Hello Lalu

It will contain questions related to Maths, English and general knowledge, logical reasoning and data interpretation and analysis.

To prepare for the exam you need to be well read on current affairs on a regular basis. Current affairs is not limited to reading for a month or two but for a life time. It's not a part of the syllabus but it will keep you updated.

You can also refer to books like Verbal and Non verbal reasoning and Quantitative aptitude by R S AGGARWAL.