In late 2025, Zarkua was linked to a major corruption case involving the company Lagi Capital LLC. This company, which won state tenders worth millions of GEL for kindergartens and schools, was accused of fraudulently misappropriating large advance payments from the state without completing the projects.[6][7] According to media reports, Lagi Capital was owned until 2023 by Aleksandre Amisulashvili, who is Zarkua's brother-in-law.[6] The case led to the arrest of several former officials from the Ministry of Regional Development and Infrastructure and the Municipal Development Fund. Zarkua dismissed the allegations linking him to the scandal as "another shameful fake news".[6]
Zarkua has publicly proposed expelling foreign ambassadors he deems "destructive," drawing significant media attention. He specifically targeted the British Ambassador, Gareth Ward, accusing the UK of having a "colonial attitude," and the German Ambassador, Peter Fischer, whom he described as an "outright radical" for engaging with the opposition. Zarkua stated that ambassadors "replacing radicals and acting against the state... should be expelled". These comments occurred during a period of sharply deteriorated relations between Georgia and its Western allies.[8]
In 2025, Zarkua, along with fellow MPs Viktor Sanikidze and Gela Samkharadze, was allegedly involved in assaulting a fellow Georgian citizen, Lasha Gabitashvili, in a hotel restaurant in Abu Dhabi, UAE. Security camera footage reportedly showed Zarkua throwing food at Gabitashvili and starting a fight.[9] Gabitashvili linked the attack to his earlier remarks, where he had called Zarkua and Sanikidze "traitors" and "Russian slaves". Reports indicated that local police detained one individual after a thrown plate hit a waiter, and Gabitashvili planned to file a lawsuit against the MPs.[9]