Again a post misinformed on many levels, so much so that it borders on funny.
Now for me being ignorant of our own languages, I can speak Bengali but easily understand Oriya. Similarly, I am fluent in Marathi, but can understand Gujarati just on the account of understanding Marathi.
English and French are quite distinct, both spoken in Canada, no ones breaking up Canada. And what exactly is a problem with having multiple languages in a nation. Languages are like tools, more you have in your toolbox, better is your communication. No one is eliminating any regional languages. It just seems non-Indians have a problem with India's diversity.