Team owner Vijay Mallya, who with the Dutch Mol family recently bought and renamed the former Spyker outfit, said on Tuesday that Shah Rukh Khan would be involved in a multimedia campaign to promote the team in India.
"He said 'I'm a proud Indian and I would love to do it for an Indian F1 team'," Mallya told the news agency PTI.
"He did it for free," he added.
Force India, originally founded as Jordan in 1991 with a base at Silverstone (UK), is the first ever Indian F1 team.
The team is expected to officially launch its 2008 campaign in the Indian capital Delhi.
Mallya also promised to consider countryman Karun Chandhok, currently a GP2 driver who has tested once for Red Bull, for a role in 2009.
"I can assure you that he would be considered at least for the test driver's role," he said on Christmas Day.