CHENNAI, India, May 28 /PRNewswire/ --

- Sify's Entire Suite of IP Connectivity Services, Including Internet
Access to Enterprise Customers and MPLS-Based IP-VPN Services are IPv6
Enabled

CHENNAI, India, May 28 /PRNewswire/ --

Sify Technologies Limited (Nasdaq National Markets: SIFY), a
leader in Enterprise and Consumer Internet Services in India with global
delivery capabilities, announced today that http://sify.com is the first
commercial content portal in India to be IPv6 enabled. This makes Sify a
first mover in testing and deployment of IPv6 technologies and its associated
services in India.

Arvind Mathur, Chief Architect, Sify Technologies Limited,
said, "The decreasing availability of IPv4 addresses makes it imperative for
users to migrate to the IPv6 space eventually. As pioneers in services over
IP in India, Sify has addressed this critical need to augment its IP address
resources. Our capabilities in IPv6 migration are in line with our vision to
develop future proof solutions for customers."

Today, Sify's entire suite of IP connectivity services,
including Internet access to enterprise customers and MPLS-based IP-VPN
services are IPv6 enabled. This ensures that Sify's customers can transition
and migrate from a basic IPv4 based network service to IPv6 Next Generation
Network (NGN) with dual-stack [IPv6 & IPv4] support. Speaking about the
migration process, Arvind said "Migration to IPv6 requires careful planning
that adapts, integrates and helps co-exist with the current network
environment".

Sify has also been participating in various projects at
international forums to encourage the adoption of IPv6.

Dr. Sathya Rao, Director of Telscom, Switzerland ,
coordinating the European funded co-operation project , 6CHOICE 
(India-Europe Cooperation to promote IPv6 adoption; http://www.6choice.eu),
said, "We are very happy to have Sify, an early adopter of IPv6 in the
provision of future IP services, as a partner in the project. We believe in
their capabilities in adding value to 6CHOICE and to the Internet industry at
large, and expect others to follow their initiative."

A recent survey commissioned by APNIC and conducted by KPMG
with 601 respondents from 44 different Asia Pacific economies has revealed
that nearly two thirds of the respondents are not adequately prepared for the
transition to IPv6. Calling for action on the issue, Arvind added "We urge
all organizations integral to the Internet infrastructure to adopt IPv6
early-on so as to ensure a smooth migration, as well as to circumvent any
potential scalability issues in the future."

The IPv6 space has 340 undecillion addresses; APNIC has
assigned Sify a 0.00000002% share, which by itself constitutes 79.22
octillion addresses.

The abundance of IPv6 addresses will help Sify roll-out
consumer services supporting digital home networking, IP surveillance and
other services supporting mobility based applications. Sify is currently
working on IPv6 deployments that include Video Streaming over IPv6 networks
and enabling Mobile phones to support IPv6 applications.

About 6CHOICE

6CHOICE is an European Commission funded project to promote
IPv6 adoption towards future Internet services, with partners from Europe and
India.6CHOICE will promote IPv6 awareness among the stakeholders (Internet
Service providers, National policy organizations, research and educational
institutions) through multiple workshops, training events and joint
experiments involving IPv6 networks, services and applications. The
educational package can be downloaded from the project website
"http://www.6choice.eu" hosted by Sify.

About Sify

Sify is among the largest Managed Enterprise and Consumer Internet
Services companies in India, offering end-to-end solutions with a
comprehensive range of products delivered over a common telecom data network
infrastructure reaching 500+ cities and towns in India.

A significant part of the company's revenue is derived from Corporate
Services, which include corporate connectivity, network and communications
solutions, security, network management services, enterprise applications and
hosting. Sify is recognized as an ISO 9001:2000 certified service provider
for network operations, data center operations and customer support, and for
provisioning of VPNs, Internet bandwidth, VoIP solutions and integrated
security solutions, and ISO 27001 certified for Internet Data Center
operations. Sify has licenses to operate NLD (National Long Distance) and ILD
(International Long Distance) services and offers VoIP back haul to long
distance subscriber telephony services. The company is India's first
enterprise managed services provider to launch a Security Operations Center
(SOC) to deliver managed security services. A host of blue chip customers use
Sify's corporate service offerings.

Consumer services include broadband home access, dial up connectivity and
the e-port cybercafe chain across 249 cities and towns. Sify.com the consumer
portal of Sify has sub portals like http://www.samachar.com,
http://www.walletwatch.com, http://www.sifymax.com and
http://www.chennailive.in, http://www.bangalorelive.in,
http://www.mumbailive.in, http://www.hyderabadlive.in the city based live
video on the web. The content is available in 5 Indian languages, which
include Hindi, Malayalam, Telugu, Kannada and Tamil.

For more information about Sify visit http://www.sifycorp.com

Forward Looking Statements

This press release contains forward-looking statements within
the meaning of Section 27A of the Securities Act of 1933, as amended, and
Section 21E of the Securities Exchange Act of 1934, as amended. The
forward-looking statements contained herein are subject to risks and
uncertainties that could cause actual results to differ materially from those
reflected in the forward-looking statements. Sify undertakes no duty to
update any forward-looking statements.

For a discussion of the risks associated with Sify's business, please see the
discussion under the caption "Risks Related to Our Business" in the company's
report on Form 6-K for the quarter ended September 30, 2008, which has been
filed with the United States Securities and Exchange Commission and is
available by accessing the database maintained by the SEC at
http://www.sec.gov.

Contact information:

    Sify Technologies Limited
    Mr. David Appasamy
    Investor Relations
    +91-44-2254-0770 Ext. 2013
    david.appasamy@sifycorp.com
 
    Grayling Global:
 
    Investor Relations:
    Ms. Truc N. Nguyen (ext. 418) or
    Mr. Christopher Chu (ext. 426)
    +1-646-284-9400
    tnguyen@hfgcg.com or
    cchu@hfgcg.com

    Media Relations:
    Ms. Stacy Dimakakos
    +1-646-284-9417
    sdimakakos@hfgcg.com