Dear Aspirant,

IISc Bangalore, on any day. IISc is the best institute for research in India and both the topics you have mentioned are fall under the cap of research. IISC is even better than IIT-Bombay let alone IIIT-Hyderabad. IISC is a research centric institution and you'll see research going there up close. AI and ML are the hot topics in research in the field of computer science today and if you are given a choice between IISc bangalore and IIIT Hyderabad, go for the IISc.

Admission in IISc is through the exam GATE.

You could read more about it here: https://engineering.careers360.com/articles/how-prepare-for-gate-computer-science-engineering

Hope this helps, Thank you.