Exam

No, to get admission in any engineering college of national importance like IIT, NIT and IIIT and also in state government engineering colleges then you have to appear in JEE Mains exam and go with JoSSA counseling then you can get the admission in biotechnology in NITJ based on your rank.

Not every student gets a seat in JoSAA counselling. You will get a seat on merit basis only. Those who have scored good in the entrance, can expect a seat. But those who are having less rank go for private colleges and take admission.

Yes, you can get admission in giet for mining diploma. You should apply for this college at the time of counselling. Your class 10th score is also good, which will help you in placement.

there is less chance to get this college.
good luck

Hello Ankit,
You may use the link below to know your chances of getting a college for software engineering with your JEE Main score :
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
You may also check out the following article :
https://www.shiksha.com/b-tech/ranking/top-computer-science-engineering-colleges-in-india/46-2-0-0-0

Oberoi centre of learning and development
IIHM would be your best options. Few other colleges could be found in the link below
https://www.shiksha.com/hospitality-travel/hotel-hospitality-management/ranking/top-hotel-management-colleges-in-delhi/98-2-128-0-0

Hello Vinayak,
You may use the college predictor tool from the link below to know the colleges that you can get with your JEE score :
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

It is very difficult and almost equal to JEE. It needs a lot of preparation beforehand.