An Indian housewife speaks on her mobile

An Indian housewife speaks on her mobile phone as she sits outside her home in Mumbai on September 27, 2011. India's telecom watchdog the Telecom Regulatory Authority of India (TRAI) today exempted various service providers, including the dealers of telecom operators, e-ticketing agencies and social networking sites, from the new limit of one hundred Short Message Service (SMS) per day per SIM, which was imposed to block pesky calls and messages. India is the world's fastest-growing cellular market and second largest after China with over a dozen operators competing for millions of new customers each month with 858.37 million subscribers as of July 2011 according to latest official data made available by India's telecom regulator TRAI. AFP PHOTO/Indranil MUKHERJEE (Photo credit should read INDRANIL MUKHERJEE/AFP via Getty Images)