IIT

Go for ISRO, ISRO is having specialised recruitment board ISRO Centralized Recruitment Board (ICRB) through that you can get into ISRO. Please check ISRO website careers page for job opportunities. I don't have much idea about NASA. Hope it helps.

I would recommend you to make use of YouTube as well as some study material provided by some coaching institutes. You can borrow the study material from your relatives or some friend who have already passed his year.

Visit the rank predictor of Shiksha from the link given below-https://www.shiksha.com/college-predictor
and also sit in exams of few good private colleges.

Dear aspirant, No, there are no courses relating to game design in Indian institute of technology.

The following are the best entrance exams for pursuing B.Tech/ B.E CS course.
1. JEE Main and JEE Advanced
2. VITEEE
3. MHT CET
4. BITSAT
5. WBJEE
The following are the best Engineering for pursuing B.Tech/B.E CS.
1. IIT Mumbai
2. IIT Madras
3. IIT Delhi
4. NIT Trichy
5. NIT Warangal
6. NIT Surathkal
7. COEP Pune
8. VIT Vellore
9. DTU Delhi
10. BITS Pilani.

The minimum mark required in JEE Advanced for ECE in any of the IITs is 150. But it totally depends on the college. If your marks meet the eligibility criteria then you will get the best college. So don't think about minimum marks.
Give your best in the exam.

Hi,The minimum marks required in JEE Advanced to qualify for IIT is 10percent in each subject and 150 marks is considered as a average mark.

Yes, you can appear for JEE Mains exam after completing Diploma in mechanical engineering.

You can get into NIT if you are from a reservation category.

No such good classes go ahead with allen kotak.