Exam

Kindly refer to the link below:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-Delhi-ncr-accepting-cmat/2-2-0-10223-5822

You have some chances to get the admission but it depends on your category also. However, you should apply for it.

In India, currently there is more importance given to biotechnology and there are so many vacancy for this too. I would suggest you to go for biotechnology. It is a blend of emerging technology with used for biological systems. It is easier to go into Forensic Science or Marine Biology or Environmen

You need above 500 score but it too depends on your category. If your category is SC/ST then lower scores are also taken. So visit the website of the college and get it clarified.

Yes, you can apply for this college but once you should go to its homepage for the cutoff for this college in this year as it gets changed every year.

If you have a high score in GATE exam, then you will be applicable for the stipend when you have taken the admission.

Yes, you can give the GATE exam after B.Tech and after that, you have the various opportunities to join the PSU or any other government sector jobs which demand the GATE qualification.

Visit this link to check B.Arch colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=6919840
Then visit this link for various colleges which provides you brochure:
https://www.shiksha.com/architecture-pla

NCERT is the best book I can suggest you to prepare for JNU entrance exam og geography.
Also go through this link which can really help you more- https://www.amazon.in/JNU-Chapterwise-Previous-Geography-Examination/dp/9352512529