Dear Aspirant,

After MCA if you were willing to pursue your higher education you can go with a PhD which has like around 5years course duration and which let's you pursue a core research in a specific field you like,it may be artificial intelligence or any other sub domain in the field of computer science even after that if you feel to pursue little more in your education you can opt a post doc in some renowned college.

Few PhD offering Indian universities list is provided below:
https://engineering.careers360.com/colleges/list-of-phd-in-computer-science-engineering-colleges-in-india


Hope this helps you out
All the best