Indian Institute of Technology, Delhi

It's pretty good. In fact, MBA here has good ROI. We have a great mix of students (almost 40% of the batch of 112 students) who have relevant work experience in the IT sector across various domains-Manufacturing, BFSI, Core IT, Oil & Gas, Telecom, etc. All types of companies including IT and FMCG visit the campus. Since the institute has 100% placement, you will definitely get a job in a good company.

It depends on the number of vacant seats in that branch. Moreover, you should have good marks in the 1st year, then only you can change your branch.

It depends on your marks in the 1st year because only a limited seats are vacant in that branch. So, the student with higher marks will get the preference. So, if your among the toppers of your college, then you should approach your registrar or the dean of students.

Get all the required information on the link: https://www.shiksha.com/science/course/m-sc-in-mathematics-department-of-mathematics-indian-institute-of-technology-delhi-hauz-khas-110697.

Hello Niranjan,
IITs accept Diploma as equivalent to 12th. Hence, firstly you need to score at least 75% in Diploma and then clear JEE Mains and JEE Advanced with good rank to get into IIT-Delhi.

Aerospace engineering in IIT-Madras is a better choice than engineering Physics from IIT-Delhi, because Aerospace Engineering has much better opportunities, because aerospace engineering is in much more in demand than any other engineering. And, after doing aerospace engineering, you can even go in NASA or you can become an engineer related to Aerospace.

Well, all these are top institutions for engineering and other research courses. But if you want to choose one of them, then it should be depending on your interest. You need to choose the branch as per your interest and the one that will make you more comfortable to achieve your future goal.
If the field doesn't matter, then go for Aerospace Engineering from IIST from where your chances to go in ISRO would be increased.
All the best.

All these are top IITs. You can go in any of these, All these have best placement in various fields. You should opt according to your score if you have chances like these.

In IIT Both branches have good placements record. IITs are the top institution for providing the highest placement in India. IIT Delhi is ranked 1.