F1 teams contributed to the design of India's new grand prix circuit.

F1 teams contributed to the design of India's new grand prix circuit.

Under construction since last November outside the capital Delhi, the layout was penned by the formula one regular Hermann Tilke's German company.

But Mark Hughes, vice president of promoter Jaypee who have signed a ten-year race contract with Bernie Ecclestone, said the teams have also been involved in the shape of the track that could be the fastest on the calendar after Monza.

"We sent the details to all the teams and they programmed the information into their simulators and gave us feedback on where we could make improvements and add overtaking opportunity points," he said in an interview with Reuters.

Hughes, formerly involved with the Bahrain race, said he expects the privately-funded $350 million venue to host its inaugural race next October.

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