The Indian Express 
February 17, 2012
The government is looking to track all mobile phone users.
As per amendments made to operators’ licences, beginning May 31, operators would have to provide the Department of Telecommunications real-time details of users’ locations in latitudes and longitudes.
Documents obtained by The Indian Express show that details shall initially be provided for mobile numbers specified by the government. Within three years, service providers will have to provide information on locations of all users.
The information will have some margin of error at first. But by 2013, at least 60 per cent of the calls in urban areas would have to be accurately tracked when made 100 metres away from the nearest cell tower. By 2014, the government will seek to increase the proportion to 75 per cent in cities and 50 per cent in suburban and rural areas.
For calls made 300 metres from the nearest cell tower, accurate coordinates will be required for 95 per cent in cities and 60 per cent in towns and villages at the end of two years.