Hey Aspirant!

Yes, after mca, you can opt for PhD program.

Here are the eligibility criteria for this program:

The minimum requirement for entry to an Indian PhD is a Masters degree in a relevant subject, usually with an overall grade of at least 55% (or the equivalent).Candidates will also be expected to have the necessary language skills for their course. English is one of India's official languages and is used for teaching at most of its universities/ However, some specialised universities will teach in Hindi, Urdu or other Indian languages.

Which by now, you might have fulfilled.

Best of luck!

Yes , You are applicable for PhD course but you must have GATE or NET score.

Only M-TECH candidate can apply for PhD without any score.

The best universities in india for doing PhD course are given below.

1. Indian Institute of Technology, Delhi
2. Indian Institute of Technology, Kharagpur
3. Indian Institute of Technology, Kanpur
4. Indian Institute of Technology, Madras
5. Indian Institute of Technology, Bombay
6. Indian Institute of Technology, Roorkee
7. Birla Institute of Technology and Sciences, Pilani
8. Institute of Technology, Banaras Hindu University, Varanasi
9. Indian Institute of Technology, Guwahati
10. Vellore Institute of Technology, Vellore