M.Tech

I would request you to go through this article by Times of India to get a clear understanding.
https://timesofindia.indiatimes.com/home/education/news/MBA-vs-MTech/articleshow/21908011.cms

Basically, the purpose of appearing for the NET exam is to enter into the field of teaching. Also, those interested in the research field need to appear for this exam along with the JRF exam. It has now become mandatory to receive the UGC pay scale the candidate should have cleared the NET exam. Any candidate who has completed the Master's degree course can appear for the exam. So, you are eligible provided you select the subjects based on the Master's degree.

I think no chance. Once you can contact the college addminatrion about that atleats you can get management seats

Refer the following link:
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/resources/college-comparison&ved=2ahUKEwiosLmEmI3cAhXMq48KHR4yAb0QFjAAegQIAhAB&usg=AOvVaw3y5SpvbIBeIOXTZhH2ugyJ

Hello,
Here I have mention a link for you. Hope this will help you
https://www.shiksha.com/resources/college-comparison.

The exams considered for admission are COMEDK UGET and KCET.

Hello Sakshi,
There are a large number of colleges in US and an equally large number of opinions as to which institute is the best.
Again, the fees/ scholarships/ opportunities to earn are quite dynamic in nature.
In view of this, I would advise you to approach an agency dealing with sending students to US to take care of different nuances.