Information Technology

You can follow these books for the NIMCET as well as other entrance exams, like JAM Test organized by IITs for the MCA Entrance all over India.
A Comprehensive Guide for MCA Entrance Examinations by RS Aggarwal:
This book cover the Mathematics computer general awareness, Algebra, Trigonometry and Data Representation. This is the updated version of the previous books, and is according to the new syllabus and formats. You can buy a Comprehensive Guide for MCA Entrance Examinations Book Online at Low Prices in India
2) A complete study package MCA Entrances of all Indian universities (Old Edition)
This book covers the all university syllabus and which are conducting the MCA Entrance Exam all over India. This book have the complete Syllabus for every Entrance Exam. Learn every tactics to clear the any entrance exam from this book.
It have the solved question paper of every university conducting the MCA Entrance Exam.
In depth Explanation of the Numerical to clear the Examination.
Buy a complete study package MCA Entrances of all Indian universities (Old Edition) Book Online at Low Prices in India.
A Complete Study Package for MCA Entrance of All Indian Universities (Old Edition) another Edition by the Admit M Aggarwal.
Learn the Basic programming question from this book and know more about the networking, Quantitative and computer organisation and Different concept to clear the Examination.

Game programming, a subset of game development, is the software development of video games. Game programming requires substantial skill in software engineering as well as specialisation in one or more of the following areas, which overlap heavily to create a game: simulation, computer graphics, artificial intelligence, physics, audio programming, and input. First a fall, you have to understand what is game development. Then decide is really I am interested in it. If yes, do I have the required skills for that. There is no specific procedure. You can be a game developer at any time like it has nothing to do with your subjects. But I suggest you should atleast take a graduation. I will suggest you to take B.Tech/BE in CSE or IT or BCA. They will help you in your career in game development.
There are also various online courses and certificate courses in game development that will help you start your career as game developer or game programmer. For game programmer you should be very good at programming Languages like C, C+, Java and others. Think calmly and then Decide.
Good luck!