Regional language protection groups in India plan to meet July 15 in Bangalore to address concerns that English will be replaced by Hindi for official purposes on the vast Indian subcontinent, Indian business news outlet Mint reported July 11. Among the incidents spurring the linguistic societies to gather were the replacement of English with Hindi on highway signs in the southern Indian state of Tamil Nadu and recent comments by Indian Minister of Urban Development Venkaiah Naidu, a member of Prime Minister Narendra Modi's Bharatiya Janata Party, calling Hindi India's national language. No one language unites the country's 1.3 billion people, who speak a multitude of tongues. But English, a remnant of its colonial past, and Hindi are its official languages. The language divide represents an important one between the states of the Hindi-speaking northern heartland and those in the south, where Dravidian languages are used, although English is the lingua franca.