EXHIBIT 32.1

                  CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
                       Pursuant To 18 U.S.C. Section 1350
      As Adopted Pursuant To Section 906 of The Sarbanes-Oxley Act Of 2002

      In connection with the Quarterly Report of Nayna Networks, Inc. (formerly
ResCon Technology Corp.), on Form 10-QSB for the period ended February 28, 2005,
as filed with the Securities and Exchange Commission on the date hereof (the
"Report"), the undersigned, Naveen S. Bisht, Principal Executive Officer of the
Company, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002, that:

      (1) The Report fully complies with the requirements of section 13(a) or
      15(d) of the Securities Exchange Act of 1934, as amended; and

      (2) The information contained in the Report fairly presents, in all
      material respects, the financial condition and result of operations of the
      Company.



Date: April 15, 2005                    By: /S/ Naveen S. Bisht
                                            -------------------------------
                                            Naveen S. Bisht,
                                            Principal Executive Officer