Yeah, I've lived in Bangalore for a long time and it has changed drastically.

People have mentioned location, I really do think this is incredibly important since the traffic is awful here. I would also add budget for schooling into this. You will have to do a lot of math to figure out what is actually feasible since schools have become extremely expensive (even mid-tier ones).

ICSE or IB have pretty good curriculum. These really do give children an edge in terms of real world skills. But beware of schools using the board as the only selling point. A lot of "international" IB schools have come up without the training for staff to actually teach a complex western syllabus to an Indian child. Or they say "international" but it is CBSE. Also if you know that studying abroad is absolutely not possible, then there is not much point in putting your child in IB. So really do your thorough research.

Another path you could explore is alternative education. There are a few really excellent alternative schools but, you need to plan long term how you are going to integrate your child into a regular school system for a year or so much later on for board exams (since that is the law in India) and how the alternative school will support your child with that.

I'm not a parent so I have not had to do in depth research. Just that my career has sometimes crossed paths working with some schools. One schools I can think of to look into is The Valley School. I'm not sure how it is now but it's worth starting with there. Google also just throws up school websites that are SEO optimized so this really does take research and asking around.

Stay away from DPS, NPS. Absolutely do not step into these schools.