Science

There are so many colleges good for B.Sc. Though, you should choose one which is near to your home. BHU is one of the better option AMU is also a good option. Kindly figure out a option which is near to you.

https://www.shiksha.com/b-tech/resources/upsee-college-predictor
Please go to the link that I am sharing here to know about the college you can get.
Good luck.

Aeronautical engineering is the best and has a good job scope.

Fistfull to do MBA:
You have to be eligible for that and to be eligible for MBA you need to do your under graduation so you can choose BCA or BBA to complete your MBA BCA has good scope but for that you need a good college check out some good colleges for yourself and pursue your BCA or BBA to study

Hello Rutvik,
Yes, you can. There are some colleges that take the direct admissions. Good luck.
Thanks.

Hello Nitin,
There's no minimum percentage criteria. You can get entrance by direct admission process. Also, there's no entrance exam. Good luck. Thanks.

Yes, there are many such courses related to stock market. You can go to: http://nseindia.comand see the details. And Free Book on Art of Stock Investing in PDF. Google and get it
I hope this helps.

Hello Deepak.
Not specifically in Hindu College, but there are in total 78 seats in Delhi University for M.Sc. Botany. The admission process is merit-based.
Good luck. Thanks.