What's so great in learning Kannada! Why do you advocate learning other languages! It would come naturally once you allow people to settle down and get to do their business. So dont make it a criteria for coming and working in Bangalore or for that matter any place. You Hypocrite stop such bad advises and suggestions.
Do you want people getting posted in Bangalore go straight to learning Kannada instead of their Work. What Non-sense is this! Why is this happening to India!