CBSE

Basically, the placement will depend on yourself. The more you have taken and have the skills. More you work hard and have the talent, the chance will increase. All colleges are basically same in terms of placements. Try for IITs or government colleges. Maintain your academics as well participate in extra activities too like sports, colleges events, seminar, conference, workshop, etc. It will help you to gain knowledge and experience. Best of luck.

Hello,
You have a good percentage in CBSE Board. But, it is not sufficient for Sastra University, can you mention your predicted JEE Mains score? If it is above 100, then you have fair chance.

Hello,
Yes, you can get aerospace engineering through stream 1. Though it's board marks is 88%, you have a fair score in JEE. Wish you all the best.

Hi,
Hindu college is one of the best colleges of Delhi University and for taking admission there, you need to get at least 95%, if you are from general category.

Hello,
You certainly have a lot of options in Mass Communication in India.
The best colleges in India, which are also pretty affordable are:
Jamia Milia Islamia, Delhi
Symbiosis Pune/Noida
Indraprastha University, Delhi
St. Xaviers MUMBAI
Amity University, Noida
Christ University, Bangalore

Check out the link for career in the field of economics
https://www.shiksha.com/careers/economist-39.

Basically, for almost all entrance exam, the registration has started and most of them are even close now. Still, some private college like UPES, LPU, and Manipal University etc. have open registration for admission. If you want to go for admission in private, just check that you fulfill the criteria, so that you are eligible for appearing in the exam.

Astronomy is a good field. You can be an astronomical engineer by making a degree, you can be a biologist as there is requirement. You can be a researcher over this field, you can work on light, astronomical lights, which fall on Earth from Faraway Galaxy. For these, you have to earn some degrees and you can be one. All the very best.