India plans to extend its crackdown on Research In Motion's (RIM) BlackBerry services to other communication service providers, including Skype and Google.
The decision stems from India's concerns that terrorists will use encrypted communications to co-ordinate attacks similar to those in Mumbai in 2008.
Indian authorities insist law enforcement agencies should be able to access any communication through the telecom networks.
The government is demanding that all service providers set up local servers to enable intelligence agencies to monitor e-mail and chat conversations, according to US reports.
The move comes just days after the Indian government gave RIM an extension on a deadline to provide access to its encrypted BlackBerry services.
RIM has 60 days to come up with a way of giving Indian agencies lawful access to BlackBerry services.
RIM competitor Nokia has announced that it will install a server in India to handle communications from its messaging service by November.
Analysts have expressed doubts that it will be technically possible for any providers of encrypted communications to meet the Indian government's demands, according to the Financial Times.
But US reports say India has begun testing monitoring tools from RIM and that talks on further access are ongoing.