Indian consumers check their mobile telephones at a free Wi-Fi Internet zone in Mumbai on February 23, 2016. India is the world&#039;s second-largest mobile market and notched up its billionth mobile phone subscriber in October, according to the country&#039;s telecoms regulator. But in poorer Indian states such as Bihar, &#039;teledensity&#039; -- the penetration of telephone connections for every hundred people -- is as low as 54 percent, with a stark urban-rural divide.  AFP PHOTO/ INDRANIL MUKHERJEE / AFP / INDRANIL MUKHERJEE        (Photo credit should read INDRANIL MUKHERJEE/AFP/Getty Images)