IIT

Hi,
There is a list below of institutes who provide Game design and development:
https://www.shiksha.com/search/?q=Game+Design&sb[]=43&sa=1^0^0^0^0^43^0^0^0^0^0^0^0^0^sb:43&rf=searchwidget&ct[]=1
In India, there are plenty good institutes are available in Game design and development. I would advise to take a course from India join somewhere. Over the years, after have experience then you may move to abroad if more options are there.

I will prefer you to try TMH for scoring good in maths.
But the main thing is to go through previous year JEE questions which will give you an idea and many of the questions will clear your misconceptions.
GOOD LUCK

CSE is the best engineering, but I will suggest that you choose the branch according to your interest. If you are interested in programming languages then opt for CSE.

You can surely get admission in new NITs and SRM.

Hello,
The admission into IITs for undergraduate programmes is based on the ranks in JEE Advanced.
For JEE Advanced, the syllabus is NCERT's class 11th and 12th. But the difficulty level is quite high.

Hello Nagesh,
No, you cannot. There are no lateral entry admissions in IITs and NITs till now.
So, you may opt for other colleges through lateral entry.
All the best.

I don't think IITs offer biotechnology but you can check Shiksha's website and use filters to see it if gives such course.

Go to Shiksha.com and use filters to find which IIT provides that course.