Ph.D

Refer the link for details: https://www.shiksha.com/engineering/course/ph-d-shri-jagdishprasad-jhabarmal-tibrewala-university-rajasthan-other-190998

Yes, you are eligible after passing OUCET exam. After completion of your PG, you can go for PhD as well.

I'm assuming that you wanted to write about JEST (Joint Entrance screening test) and the answer is Yes, you can give JEST after B.Sc. To get integrated Ph.D. in many institutes you can check that on the site of JEST also there is integrated PhD. in TIFR where you've to give their own entrance exam G

As you are already a Post Graduate in the form of MBA, you need to go for NET to do Ph.D. But if you want to have two things-
1. Priority in getting Admission in Ph.D. then NET qualified Candidature will help a lot.
2. If you want to have a Job in Higher Education after Ph.D. then NET is the way. UGC

You can apply for jobs in as you can also give their exams after B.Sc if you're that good. Also, you can apply for NET only if your one year Masters degree you received from any foreign institute is equivalent to a two year programme under any Indian UGC approved institutes. So, just check is that o

You can go for internshala. It is the best for the internship programme. It is free of cost, and you can make your profile and apply for various internship according to your field and interests.

Hi,
Doing Ph.D in any stream is a very tough decision because this requires a lot of patience, consistency, time and money also. However, it depends upon own caliber and interest and if you think you can. Now, coming to the point, in my opinion, you have already taken the PG in manufacturing enginee