<DOCUMENT>
<TYPE>EX-23.4
<SEQUENCE>4
<FILENAME>f87490a2exv23w4.txt
<DESCRIPTION>EXHIBIT 23.4
<TEXT>
<PAGE>

                                                                    EXHIBIT 23.4

                                [IDC Letterhead]

                                            February 24, 2003

To
Sify Limited
Tidel Park, 2nd Floor
No. 4, Canal Bank Road, Taramani
Chennai 600 113
India

Gentlemen:

You have approval to use the following statistics prepared by International Data
Corporation ("IDC") in public filings made or to be made with the United States
Securities and Exchange Commission:

         -        IDC estimates that the number of Indian Internet users will
                  grow from approximately 4.4 million in 2000 to approximately
                  37.6 million in 2005. (Source: IDC #IIM-00/09 dated June 2001
                  Report Title: The Emerging e-commerce Market in India,
                  Analyst: Chandra M. Sharan & Anika Raja)

         -        IDC estimates that the Indian installed personal and network
                  computer base will grow from approximately 4.2 million in 2000
                  to approximately 19.65 million in 2004. (Source: IDC
                  #11M-00/09 dated June 2001, Report Title: The Emerging
                  e-commerce market in India, Analyst: Chandra M. Sharan & Anika
                  Raja)

         -        IDC estimates that Indian Internet commerce revenues will
                  increase from approximately $393 million in 2000 to
                  approximately $27 billion in 2005. (Source: IDC #IIM-00/09
                  dated June 2001, Report Title: the Emerging e-commerce Market
                  In India, Analyst: Chandra M. Sharan & Anika Raja)

         -        IDC estimates that India had an installed base of
                  approximately 4.2 million personal computers in 2000. (Source:
                  IDC #11M-00/09 dated June 2001, Report Title: The Emerging
                  e-commerce market in India, Analyst: Chandra M. Sharan & Anika
                  Raja)

/s/ V. Shekhar Avasthy
Regards,
Shekhar
(V. Shekhar Avasthy)
HEAD-INTERNET, COMMUNICATIONS AND CONVERGENCE RESEARCH


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