Ph.D

Please use the link provided below for details regarding options to study Ph.D in civil engineering at Vels University. You should be able to download their brochure which should give you accurate details regarding a course in Ph.D at Vels University. To my knowledge, a course in Ph.D is currently unavailable at the institute, however, you can use the link to download the brochure to check for the same.
Link: https://www.shiksha.com/university/vels-university-chennai-32583

Please use the link provided below for details regarding fee structure of IIIT-H for a Ph.D course in CSE. You should be able to download their brochure which contains accurate details like application dates, eligibility criteria, fee structure, etc.
https://www.shiksha.com/engineering/course/phd-in-computer-science-engineering-cse-international-institute-of-information-technology-iiit-h-gachibowli-hyderabad-201485

The first and basic qualification required for a Ph.D course is that
you must have completed your Master's degree course.
To apply for Ph.D, you can either directly apply to the professors of
different universities sending them your resume, Statement of purpose and your research papers or you can appear for UGC-NET examination and then sending your NET scores to the professors under whom you want to undergo your Ph.D course.

The first and basic qualification required for a Ph.D course is that you must have completed your Master's degree course.
To apply for Ph.D, you can either directly apply to the professors of
different universities sending them your resume, Statement of purpose and your research papers. Or you can appear for UGC-NET examination
and then sending your NET scores to the professors under whom you want to undergo your Ph.D course.

Below mentioned are some Universities offering Interdisciplinary PhD:
1. IIM Bangalore
2. Ashoka University
3. Pondicherry University
4. TERI University
5. IIT Delhi
These are some top universities for your reference.
For NET after MBA you must possess 55% marks at least. You need to fill the form for NET with some chargeable fees, then you can apply for exam.

Hi,
If you have applied for a PhD you must know the process already. Please clarify for better guidance.

There is no option for free education at this level you have to pay some amount of money for PhD program and government will give you 25k per month for studying PhD program.

Yes, you have to complete your M.Sc in your field and after B.Sc then you are eligible for PhD.