Lawyers representing Mohamed Aqtar Ali, the brother of President Dr Irfaan Ali, and Sigma Engineers L.T.D. Inc. have threatened legal action against Opposition Leader Azruddin Mohamed over statements made in a video published on the Team Mohamed Facebook page.
The separate letters, both dated August 17, 2026, demand that Mohamed withdraw the statements, remove the publications and provide written retractions and apologies, failing which legal proceedings may be initiated.
In the letter from attorney-at-law Kashir A. Khan on behalf of Aqtar Ali, Mohamed is accused of making statements intended to “impugn the character and integrity” of the President’s brother.
The letter takes issue with statements in which Mohamed identified Aqtar Ali as the brother of President Dr Irfaan Ali.
It also challenges the allegation that Sigma Engineers is Aqtar Ali’s company, allegedly being fronted by his close friend, Taamjeed Rahmaan, and that Aqtar Ali’s name appears on the company’s financial records.
Mohamed also allegedly claimed that Rahmaan and Aqtar Ali knew each other through a mosque in Canada and accused them of bringing friends to Guyana to “rob taxpayers”.
The lawyer further cited allegations concerning Aqtar Ali’s alleged presence and access at State House, as well as claims that community land was made available to facilitate space for his company.
Khan said the allegations are “untrue, reckless” and unsupported by proper evidence. He said his client rejects them and maintains that he is neither a director nor shareholder of any of the companies referenced in the video and has never held such positions.
The letter said the video had been viewed more than 384,000 times, generated more than 1,600 comments and was subsequently reported on by sections of the media.
Khan has demanded that the allegations be withdrawn, warning that any further publication or repetition could result in legal action to protect Aqtar Ali’s reputation.
Separately, attorneys Gunraj & Co., acting for Sigma Engineers, sent a pre-action protocol letter to Mohamed concerning the same August 17 video.
The lawyers said Mohamed questioned how Sigma Engineers, incorporated on October 6, 2022, could receive billions of dollars in Government contracts within days of its incorporation.
The video also alleged that Sigma was connected to Aqtar Ali and made claims about the company’s contracts, employment practices and the deaths of two children at Bachelor’s Adventure.
Sigma’s lawyers said those allegations falsely portrayed the company as corrupt, unprofessional and negligent.
They maintain that Sigma has received only one Government contract since its incorporation—a 2026 contract for rehabilitation of the Guyana Water Incorporated Shelter Belt—and that work has commenced and remains ongoing.
The company denies receiving the other contracts cited in Mohamed’s publication.
The firm is demanding that Mohamed cease and desist from repeating the allegations, permanently delete the publications, issue a full retraction and apology with comparable prominence, and pay compensation and legal costs.
It has warned that failure to comply could result in proceedings before the High Court of the Supreme Court of Judicature of Guyana, where it intends to seek damages, an injunction and other relief.
Sigma Engineers Ltd Inc. in a press statement has rejected allegations made by Mohamed about its operations in Guyana, describing the claims as serious misrepresentations and saying it has engaged legal counsel to consider further action.
The Bangladesh-founded engineering company said it was particularly concerned by suggestions about when it was established, how it secured Government contracts and the role of Mohamed Aqtar Ali in its Guyana operations.
Sigma said its engineering experience predates its Guyana operations by more than two decades, noting that it was incorporated and operating in Bangladesh since 2003.
Its Guyanese entity was registered on October 6, 2022, but the company said it did not secure its first Government contract until 2026.
According to Sigma, that contract was awarded only after the company participated in a national competitive bidding process administered through the National Procurement and Tender Administration Board (NPTAB).
The company also sought to clarify Aqtar Ali’s connection to its operations, saying he was engaged by the Guyana entity in the capacity of a senior technical consultant.
Sigma said he has no affiliation with the company’s business operations in Bangladesh.
Sigma said the allegations have left it with little choice but to seek legal advice to protect its reputation and determine the appropriate course of action.
The company maintained that it conducts its business in accordance with Guyana’s laws and regulations and is committed to professional standards, accountability and integrity.
It also called for greater accuracy in public discussions involving private companies, arguing that claims about their operations should be supported by verifiable information.
Sigma said it respects due process and intends to continue working through its legal counsel, while reserving the right to provide additional information concerning its operations and the allegations made against it at the appropriate time.
