Bangalore was a name which I loved because it packed a phonetic bang. "Bang-a-lore" I would sing riding around on my trusty motorcycle. When I first arrived in Bangalore, the head of the state goverment was Chief Minister Bangarappa (Bang-a-rapper?). I got my college degree from 'Bangalore University' a name that's known internationally. Believe it or not, Bangalore is an globally recognized (pronounce-able) brand associated with the information technology revolution of India. Due to its loss, the city will take a hit.
It's even funny to know what Bengaluroo may actually mean. There's a popular story that a king from the Hoysala dynasty, while on a hunting expedition, stopped for a meal break and was fed boiled beans by a kindly old lady, and thus he named the old hamlet after that dish - benda kala ooru (in Kannada), the village of boiled beans. However some historians seek to console us that it's not true and that the name actually derives from some specimen of flora.
Indian cartographers have been tearing out their hair vigorously for the past decade or so. Trivandrum became Thiruvananthapuram (even Indians have problems saying that out loud). Bombay (now, did't that sound explosive) became an uninspiring Mumbai. Madras became Chennai (which sounds like another food item). Calcutta became Kolkata (in Hindi that would sound like 'I bit [something] yesterday'). And I haven't even started discussing individual street names yet.
"But it's all the Britisher's fault", protests the Indian politician, "because they couldn't pronounce the Indian dialect, they twisted it into a English sounding word". Granted, but that does not mean that you are doing anyone favours by renaming these cities 40 years after Independence. When the true generation of Indian freedom fighter did not have any problem with these names, why do you?
These names have become identities or brands in their own right, with long histories. A Bombay or Madras does not get located in Britain because of its name. There are no other places in the world with theses names. These names also belonged to India, in fact the India of your fathers and grandfathers. Bangalore had been named thus since 1537.
The politician thinks he or she can go down in history as the person who got the city's name changed. Let me tell you - history doesn't care. In another 100 years your contributions will be judged on other criteria. And what would happen if other politicians got the same idea? Even worse, what would happen if the latest pundit, numerologist, psychic or guru-ji decided that the current name is 'cursed with bad luck'? Well, we'll go skipping along singing another name-changing tune.
See also article in the Economist