At the 2017 UK Championship, Mehta defeated Sam Baird in the opening round on a deciding frame 6–5, but lost in the second round to Luca Brecel 6–3. Mehta reached the second round of the Welsh Open defeating Martin O'Donnell, before losing to Mark Williams. Mehta's final ranking appearance of the season was at the Gibraltar Open, where he reached the third round. He defeated Brian Ochoiski and Kurt Dunham before losing to Tian Pengfei. His final match of the season was in the first round of qualifying for the 2018 World Snooker Championship, where he lost 8–10 to Zhao Xintong. Mehta finished the season outside of the top-64 in the world rankings, and did not retain his place on the World Snooker Tour. After returning to being an amateur player, Mehta played less due to his neck issues. However, in 2019 alongside Pankaj Advani-Aditya the pair won the IBSF World Team Snooker Championship, defeating the Thai team 3–1.