UNITED STATES

SECURITIES AND EXCHANGE COMMISSION ~~Washington, D.C. 20549~~

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 ~~UNDER~~ ~~THE SECURITIES EXCHANGE ACT OF 1934~~

~~For~~UNDER ~~the~~THE ~~month~~SECURITIES ~~of:~~EXCHANGE ~~July~~ACT ~~2025~~OF 1934

For the month of: September 2025

Commission File Number: 000-27663

SIFY TECHNOLOGIES ~~LIMITED (Translation~~ ~~of registrant’s name into English)~~LIMITED

(Translation of registrant’s name into English)

Tidel Park, Second Floor

No. 4, Rajiv Gandhi Salai, Taramani

Chennai 600 113, India

(91) 44-2254-0770 ~~(Address of principal executive office)~~

~~Indicate~~(Address ~~by check mark whether the registrant files or will file annual reports under cover~~ of ~~Form~~principal ~~20-F~~executive oroffice) ~~Form 40-F. Form 20-F x Form 40-F ¨~~

~~The~~Indicate ~~information~~by incheck ~~this~~mark ~~Form~~whether ~~6-K (including any exhibit hereto) shall not be deemed “filed” for purposes of Section 18 of~~ the ~~Securities~~registrant ~~Exchange~~files ~~Act of 1934 (the “Exchange Act”)~~ or ~~otherwise subject~~will tofile ~~the~~annual ~~liabilities~~reports ~~of that section, nor shall it be deemed incorporated by reference in any filing~~ under ~~the~~cover ~~Securities~~of ~~Act~~Form ~~of 1933~~20-F or ~~the~~Form ~~Exchange Act~~40-F.

Form 20-2F x Form 40-F ¨

~~Exhibit~~On ~~99.1~~September ~~furnishes~~25, ~~our~~2025, ~~annual report for~~ the ~~Fiscal~~board ~~Year~~of ~~2024-2025 which~~directors isof ~~required~~Sify inInfinit ~~compliance~~Spaces ~~with~~Limited ~~the Companies Act, 2013~~ (~~the~~ “~~Companies Act~~SISL”), ina ~~India.~~wholly ~~The~~owned ~~financial~~subsidiary ~~statements~~of ~~therein are~~Sify inTechnologies ~~conformity~~Limited ~~with~~(“Sify”), ~~the~~approved ~~Indian~~a ~~Accounting~~potential ~~Standards~~initial ~~prescribed~~public ~~under~~offering ~~section~~(“IPO”) ~~133~~ of ~~the~~equity ~~Companies~~shares ~~Act.~~of ~~For~~SISL, ~~our~~having ~~annual~~par ~~report~~value ~~with~~INR ~~financial statements~~10 in(“Equity ~~IFRS~~Shares”) aseach. ~~issued~~SISL bydisclosed ~~the~~such ~~International~~approval ~~Accounting~~and ~~Standards~~intention ~~Board,~~for ~~please~~an ~~see~~IPO ~~our~~with ~~annual~~BSE ~~report~~Ltd., onwhich ~~Form~~made ~~20-F filed with~~ the ~~Securities~~ ~~and~~information ~~Exchange~~publicly ~~Commission~~available on ~~June~~its ~~9, 2025~~website.

~~-3-~~This announcement does not constitute an offer to sell or the solicitation of an offer to buy any securities in the United States or any other jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. The securities referred to in this announcement have not been and will not be registered in the U.S. under the Securities Act of 1933, as amended (“Securities Act”) and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act. The securities referred to in this announcement have not been and will not be registered, listed or otherwise qualified in any other jurisdiction outside of India.

~~EXHIBIT~~Forward ~~INDEX~~Looking Statements

~~Exhibit~~This ~~No.~~announcement ~~99.1~~contains ~~Fiscal~~forward-looking ~~Year~~statements ~~2024~~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-~~2025~~looking ~~Annual~~statements ~~Report~~contained ~~pursuant~~herein are subject to risks and uncertainties that could cause actual results to differ materially from those reflected in the ~~Companies~~forward-looking ~~Act~~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 “Risk Factors” in the company’s Annual Report on Form 20-4-F for the year ended March 31, 2025, which has been filed with the United States Securities and Exchange Commission and is available by accessing the database maintained by the SEC at www.sec.gov, and Sify’s other reports filed with the SEC.

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: July 24, 2025
Date: September 26, 2025
	For Sify Technologies Limited
	By:	/s/ M P Vijay Kumar
		Name: M P Vijay Kumar
		Name:	M P Vijay Kumar
		Title: Executive Director and
		Title:	Executive Director and Group Chief Financial Officer
		Group Chief Financial Officer

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