There are over one billion people with Internet access on the planet but there are more than four billion people with mobile phones, and Twitter can work on all of them because even the simplest of these devices feature SMS, Twitter said.

India has a number of high-profile Twitter users, including the country’s Minister of State for External Affairs, Shashi Tharoor. The minister landed himself in controversy recently when he referred to “holy cows” in jest in one of his posts on Twitter. Cows are considered sacred in Indian society.

India added 15 million mobile subscribers in August, taking the total number of subscribers to 457 million, according to the country’s telecommunications regulator. The country added 14.4 million subscribers in July.