Force India is likely to put Karun Chandhok and Neel Jani in McLaren's Formula One simulator in the next few weeks to assess them.
Force India owner Vijay Mallya told Reuters that his team's recent success, with two top four finishes in two races had made competition for the job even stiffer. He indicated Germany's Adrian Sutil and Italy's Vitantonio Liuzzi were likely to be retained as race drivers.
"I have been very clear in my mind. I'm not a big team. I'm a very small team, probably with the tiniest budget. I need to have people who can help deliver my objectives. I can't afford any luxuries," Mallya said after Sunday's Italian Grand Prix.
Mallya said the Indian prospects would get their chance when a booking was available, probably in the next four weeks. Mercedes-powered Force India have a cooperation agreement with former champions McLaren and Sutil and Liuzzi have both had time recently in what is considered the best and most sophisticated simulator in Formula One.
Mallya was criticised for not drafting in Chandhok, instead of Liuzzi, when Italian Giancarlo Fisichella recently switched to Ferrari but he said the Indian needed to be winning races.
After 29 races without a point, Force India have scored 13 in two grands prix -- Fisichella was second in Belgium from pole position - and are ninth overall. "I have a three-year plan, going up to the Indian Grand Prix in 2011," said Mallya. "This year we should score points, next year we should aim for more podiums and then finally win races."