Nanotechnology

Hello, frankly speaking nanotechnology field is a growing field in India.
You can get more opportunities in abroad with this field. You can still get the job in India but only in research field.
Good luck.

Hi,
Nanotechnology is the branch of technology. It has a huge scope in the upcoming generations. It is the third the highest booming field when compared with IT and Internet. In India, Bangalore and Chennai are the manufacturing hub for IT and Medicine. The Indian government has already started Nanoscience and Nanotechnology initiatives and various funding agencies like the Department of Science and Technology.
Best of luck.

Definitely not, there is very rare chance of you getting admission in any college and with your preferences, it is getting almost impossible. Good Luck!

Please refer to the link provided below for a detailed comparison between these two institutes for a B.Tech course in Nano-Technology. You should be able to compare various feature of these two institutes offering this course to reach a decision which is better among the two.
Regards.
https://www.shiksha.com/resources/college-comparison-296570-231972

I am not sure about Jaipur University. But nanotechnologist get an average salary of 10 LPA.

If you are able to pay the fee required then you may get admission in Amity easily. You may need recommendation to get admission.

No exact answer can be given as admission in SASTRA is on the combined basis of boards and Mains score.
Since you have a low boards percentage, you can only get into it if you have good Mains marks.
However, the branch is non-core, hence the competition will not be much.