B.Tech Computer Science and Engineering

Go with the post graduation because it will help you to crack good, better and highly paid jobs.

Manish,
Don't worry buddy. Not just for IT and CSE, but all the engineering stream has same subjects in first year.
Good luck.

Dear Rishabh,
ISRO is a central government organization, all the vacancies and recruitment are transparent and conducted via a centralized recruitment system. All vacancies published in all Daily news paper or employment news. Keep a watch regularly on these or you can can also visit the ISRO's recruitment website on regular basis. http://www.isro.gov.in/careers

Hello Suman,
Please refer the link to get more insights of the colleges and branches:
https://www.shiksha.com/resources/college-comparison

Hello Adarsh,
Here is the list:
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/ranking/top-computer-science-engineering-colleges-in-india/46-2-0-0-0&ved=0ahUKEwju6YiS4LjVAhXDpo8KHRp6D5kQFgjDATAA&usg=AFQjCNHlO_caCZai8SaW43-vMkaRL4iRkg

SRM is suitable for you.

I think you should go with Arena Animation and do graphic and web designing in gaming, you have a bright future if you go with it.