Arjun Maini will join Renault Formula 1 junior Jack Aitken at Campos Racing in Formula 2 at both the Red Bull Ring and Silverstone rounds, replacing Dorian Boccolacci.
Maini had a troubled F2 season in 2018 with Trident Racing, finishing 16th in the points, and he elected to make a switch to endurance racing in the European Le Mans Series for '19.
But Maini now joins Aitken, pictured below, at Campos, currently fourth in the teams' standings, for this weekend's race in Austria.
"As I have always stated, Formula 1 remains my ultimate aim," said Maini.
"We made a decision to try something different this year and irrespective of the results, I believe it has worked for the best as my time in the LMP2 car has definitely helped prepare me for the future.
"I'm looking forward to these next few weeks and I hope I can put my best foot forward in both rounds.
"I know that joining mid-season without any testing is not easy for anyone but I am prepared to take on the challenge."
Campos Racing president Adrian Campos added: "I have closely followed Arjun's racing career for several years.
"He is a driver with the necessary blend of talent and commitment to make his prospects extremely interesting.
"It is fantastic to have him on board with us and our driver line-up consisting of Arjun and Jack is really strong.
"I am amazed by our new pairing in the FIA Formula 2 Championship."
Boccolacci suffered technical issues at his home round in Paul Ricard last weekend and has always had to work hard to pull together the required budget.