Force India comfortable in sixth position, but Toro Rosso remains a concern with 2 races to go says team boss Vijay Mallya said.

Vijay Mallya: Formula 1 becomes more and more competitive with each passing day. Toro Rosso has clearly made a huge step since Japan. We've also made a bit of a step with the upgrades we brought to India. But at the end of the day you never know until the last race is over. We found that out painfully last year when Williams pipped us by one point, but now I think we're comfortably in sixth position, ahead of Toro Rosso as well as Sauber. But it's never done until it's done.