Preparation work at the greenfield site set to host the inaugural Indian Grand Prix next year is 90% complete.
Work included adding elevation changes and installing a vast drainage network to the site.
The circuit was designed by F1 architect Herman Tilke and features 16 corners on its clockwise layout, with elevation changes of up to 60ft, and modern Western-style buildings.
Construction of the circuit will begin soon. It is due to be completed in July 2011, ahead of the first race in October.
The race is being organised and funded by the India-based Jaypee Sports company, according to en.espnf1.com.