Scotland's Paul di Resta is expected to be named as Britain's third driver on the Formula 1 grid in 2011.
Force India say they will announce their drivers at a news conference this week at the Glasgow headquarters of one of their sponsors.
24-year-old Di Resta is already believed to have a contract to race for the team.
German Adrian Sutil is expected to be the other driver, with countryman Nico Hulkenberg as reserve.
The Italian Vitantonio Liuzzi had a contract for 2011 but the team have been trying to negotiate a settlement with him.
Di Resta, who is a Mercedes protege and won the DTM German Touring Car Championship for the marque in 2010, impressed Force India while driving in Friday morning practice
sessions, and the team have decided they have to give him a race seat.
He would join English McLaren team-mates Lewis Hamilton and Jenson Button as a British F1 driver in 2011.
Di Resta, who is the cousin of triple IndyCar champion, and two-time Indy 500 winner, Dario Franchitti, raced against Hamilton and Red Bull's world champion Sebastian Vettel in his junior career.