Hello,

Hope you're doing well.

Yes, you can do PhD after completion of M.Sc, Even you can do Integrated PhD while perusing your M.Sc. For PhD, you must need to complete your masters in the same area of specialization.

Most Universities/Colleges offer admission based on the score of CET (like UGC NET) or conduct their own entrance test (like JNU) for admission into Ph.D. courses hence students would have to make an application for such exams.

For Reference of colleges here is the link:

https://engineering.careers360.com/colleges/list-of-phd-in-computer-science-engineering-colleges-in-india

Thank you.

All the best for your bright future.