Exhibit 13.1

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

I, Tse Tsz Tun certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual Report on Form 20-F of Masonglory Limited for the fiscal year ended March 31, 2026, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Annual Report on Form 20-F fairly presents, in all material respects, the financial condition and results of operations of Masonglory Limited.

Date: July 30, 2026