EXHIBIT 99.1

EXHIBIT 99.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002(1)

With reference to the Quarterly Report of Marvell Technology Group Ltd.
(the "Company") on Form 10-Q for the quarter ended April 30, 2003 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I, Dr.
Sehat Sutardja, Ph.D., Chief 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, to the best of my knowledge, that:

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

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

/s/ SEHAT SUTARDJA
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Dr. Sehat Sutardja, Ph.D.
Co-Chairman of the Board,
President and Chief Executive Officer
June 16, 2003

A signed original of this written statement required by 18.U.S.C. Section 1350
has been provided to the Company and will be retained by the Company and
furnished to the Securities and Exchange Commission (SEC) or its staff upon
request.

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(1) The material contained in this Exhibit 99.1 is not deemed "filed" with
the SEC and is not to be incorporated by reference into any filing of
the Company under the Securities Exchange Act of 1934, whether made
before or after the date hereof and irrespective of any general
incorporation language contained in such filing.