The growth of China’s Bytedance, an ambitious $30 billion tech firm, and its highly-addictive Toutiao news aggregator app has set off a search for services with similar growth potential across the world. India, second in population only to China with rapidly-growing internet access, is an obvious place to look, and would-be pretender to the Toutiao crown has been found in the shape of NewsDog, a Chinese company that stumbled on success in India.