The Brazilian is one of the most successful drivers in the all-electric championship’s history, having been a stalwart of the series since its inception in 2014.
During that time di Grassi amassed a record 13 wins – joint equal with Sebastien Buemi – and 12 of which came with the Abt squad where he spent seven seasons.
His tenure with the German squad peaked with winning the 2016-17 Formula E drivers’ title, while he also helped it to secure the teams’ championship the following season.
“It just feels great to be back with Abt,” said the 39-year-old. “Not only did I win two titles with this team, but I also have endless memories with all the people who work there with so much passion.
“I couldn’t be more excited to return after two years and I’m really looking forward to working together. Together, we will give our all to get back, step by step, the results that the whole team deserves.”
Following Abt's departure from Formula E, triggered by the withdrawal of its manufacturer partner Audi, di Grassi spent the 2021-22 season with Venturi before joining Mahindra this year – a relationship which started strongly with pole and a podium at the opening round in Mexico City.
But the Indian manufacturer struggled with its powertrain, and di Grassi only scored a further two points finishes all season.
Mahindra, which supplies its powertrain to Abt, confirmed it had split with di Grassi earlier this week before announcing Nyck de Vries and Edoardo Mortara as its new drive line-up.
Source: Autosport