Part Time Ph.D

For Ph.D, you need to clear UGC NET. As soon as you clear it, you will be deemed eligible to do Ph.D.

Hello Sudakshina,
It's an interesting situation. Techno India University indeed offers the part-time facility of doing Ph.D. But the website mentions as only in Computer science. But I suggest you approach university administration and seek their intervention may be you would be successful.
I am attaching a link that will give you all the required information.
https://technoindiauniversity.ac.in/engg/cse/index.php?id=23

Hello Prasanjit,
This private university offers a variety of choices for studies of different programmes. You find relevant information in the different links provided in the link that I am attaching.
Best wishes.
https://technoindiagroup.com/

Here is some helpful information for you:
https://www.shiksha.com/university/the-lnm-institute-of-information-technology-jaipur-25194/courses

Here is some information on their official website- http://www.gitam.edu/admissions/engineering/research-programs.

Hi Manjula. Part time Ph.D. in Electrical Engineering is available in many institutes.

You should consider Amity University for the same. For more information, visit their official website.

Here is a link that can help you:
https://www.shiksha.com/engineering/course/ph-d-part-time-amity-university-noida-207178

The university does not disclose the fee and the class arrangements online, so you should directly contact the university for the same.