It sounds like a Bengali name hybridised to sound like a Kannada name. Why not try the original Kannada name of Bangalore i.e Bendakaluru? How you create a roman aplhabet that sound like Kannada 'Lu' in Kannadised Bengaluru?
It looks like all stupid guys decides for the rest of us. If Marathi chauvunists and Bengali (may be Bangla) chauvunits are successful, it seems like Kannada chauvunists too want to be successful. The best thing for the Kannada chauvunists should do is to change the name of Canara Bank to Kannada Bank (the correct spelling for the Canara Bank which we normally pronounce as Ke-na-ra Bank).
The best thing is let the Bangalore be Bangalore in English and Bengaluru in Kannada. Dont be be fooled by Bengalis and Marathis. Though Bengalis write it as Kolkata in English it is written as Kalkata in Bengali. Since they have this strange way of pronouncing language they wrote this English spelling as Kolkata (but keep writing as Kalkata in Bengali, but pronounced as Kolkata in usage). AS for Marathis changing to Mumbai, remember they did not change the name of BARC centre,Trombay to Trumbai). I hope Singaporeans would not change thier city state name to Simhapuram.
