Narain Karthikeyan, India's first Formula One motor racing driver, was confirmed on Thursday as remaining with the Williams team for another year.
Karthikeyan is one of the team's official test drivers and his appointment ensures continuity when the Williams team begin their partnership with Toyota next year.
He entered Formula One with the then Toyota-powered Jordan team in 2005 before joining Williams.
"As a racing driver, my first priority is to compete, but I would far rather test with a leading team than accept a race seat that offered no real potential to learn and develop," he said.
"Next season is very important for Williams with new partners at Toyota and Williams is a team that only exists to race and I hope that whatever I can contribute to this ultimate objective will be valued by the team."
Team chief Frank Williams said he was very happy with the decision.
"His appointment is extremely popular with the team because he is hard-working, conscientious and capable in the car and it is significant also that Narain carries with him India's growing Formula One interests."