There is no ‘mother-tongue’
By birth, nobody gets any particular language. In that sense, there is no ‘mother-tongue’. Childhood onward which language hears and talks more, he gets more attachment with that language and feels more comfort and gains speed in using that language. The language fundamentalists and particular language beneficiaries exploit and misuse this attachment (mother-tongue mania) for attaining their narrow political, religious and economical interests. Since, almost languages are connected with particular region, religion, cast, culture, country etc. It creates language fundamentalism in a person and one gets angry with other languages and sometimes may leads to attack on those who using other languages.
~BABA ALEXANDER NEW DELHI