Hey Priyanshu!

Before preparing for any exam , we must know the syllabus of the exam.So , let me start with the syllabus of the entrance test and  timings .So , The duration of the entrance test will be 120 minutes. The test will have objective types of questions. It will be followed by a viva voce. The test will consist of

(a) General Awareness

(b) English Language

(c) Aptitude Assessment

(d) Mathematics

And the questions asked in the entrance test will be  of medium level which means that if you just go through the basics of these four topics , you can easily qualufy the exam. For mathematics , you must have your concepts of class 12 very clear. And in english language , your vocab and grammar should be very good  . In case it is not , go through the ARIHANT OBJECTIVE GENERAL ENGLISH BOOK. And aptitude assessment just tests your aptitude which ,i hope must be good .

So , do not need to worry , with very little efforts , you can qualify the entrance exam

Best wishes!