NEW DELHI, June 20: India has launched a wide-ranging surveillance programme that will give its security agencies and even income tax officials the ability to tap directly into e-mails and phone calls without oversight by courts or parliament, several sources said.

The expanded surveillance in the world's most populous democracy, which the government says will help safeguard national security, has alarmed privacy advocates at a time when allegations of massive US digital snooping beyond American shores has set off a global furore.

“If India doesn't want to look like an authoritarian regime, it needs to be transparent about who will be authorised to collect data, what data will be collected, how it will be used, and how the right to privacy will be protected,” said Cynthia Wong, an Internet researcher at New York-based Human Rights Watch.

The Central Monitoring System (CMS) was announced in 2011 but there has been no public debate and the government has said little about how it will work or how it will ensure that the system is not abused.

The government started to quietly roll the system out state by state in April this year, according to government officials. Eventually it will be able to target any of India's 900 million landline and mobile phone subscribers and 120 million Internet users.

Interior ministry spokesman K.S. Dhatwalia said he did not have details of CMS and therefore could not comment on the privacy concerns.

A spokeswoman for the telecommunications ministry, which will oversee CMS, did not respond to queries.

Indian officials said making details of the project public would limit its effectiveness as a clandestine intelligence-gathering tool.

“Security of the country is very important. All countries have these surveillance programmes,” said a senior telecommunications ministry official, defending the need for a large-scale eavesdropping system like CMS.

“You can see terrorists getting caught, you see crimes being stopped. You need surveillance. This is to protect you and your country,” said the official, who is directly involved in setting up the project. He did not want to be identified because of the sensitivity of the subject.

The new system will allow the government to listen to and tape phone conversations, read e-mails and text messages, monitor posts on Facebook, Twitter or LinkedIn and track searches on Google of selected targets, according to interviews with two other officials involved in setting up the new surveillance programme, human rights activists and cyber experts.

In 2012, India sent in 4,750 requests to Google Inc for user data, the highest in the world after the United States.

Security agencies will no longer need to seek a court order for surveillance or depend, as they do now, on Internet or telephone service providers to give them the data, the government officials said.—Reuters