Facebook is now the most popular social network in India, having overtaken Orkut for the first time ever. The latest comScore figures show that Facebook has grown by 179% in the past year, and boasted 20.9 million visitors in July. Orkut, Google's own social network, has until now held the top spot in the country, however only saw its users increase by 16% since July 2009. India is now the seventh largest social networking market in the world,