Bangalore: https://trends.google.com/trends/explore?geo=IN-KA&q=bangalo...
Bengaluru: https://trends.google.com/trends/explore?geo=IN-KA&q=bengalu...
Bangalore: https://trends.google.com/trends/explore?geo=IN-KA&q=bangalo...
Bengaluru: https://trends.google.com/trends/explore?geo=IN-KA&q=bengalu...
Bangalore: https://trends.google.com/trends/explore?date=all&geo=IN-KA&...
Bengaluru: https://trends.google.com/trends/explore?date=all&geo=IN-KA&...
This is a post-colonial battle still being fought, and India's wish to shed its colonial shackles deserves to be respected.
If the time range is increased to the time when Bengaluru was not yet a familiar term then it is quite obvious that this new name would trend upwards to the current time.
Certainly several locals will prefer the name they grew up with. Some find it rolls off the tongue better when speaking English, or just because they used Bangalore for many years already. No such change will ever have 100% coverage in such a short time, yet I think it's worth consciously respecting. Locals will use both interchangeably because it's often used informally, but I think for anything official, it's important to use the correct and official name, which is Bengaluru. Such as here, this is not an informal post by YC but an official announcement.
https://trends.google.com/trends/explore?date=all&geo=IN-KA&...
Calling it a 'battle' that is being fought and 'shackles' being shed and all is a bit bombastic. And kindly do not purport to speak for all Indians.
What's next? Are you going to fight the battle to call Patna Pataliputra? Rajasthan Rajputana? How far back in history do the really real names lie?
They city can become respected by having a reputation of being topmost liveable city in the world, that is far more respectable instead playing silly games like changing names which waste taxpayer money.