ETV Bharat. The Indian Air Force’s ‘Sarang’ team will stage an air show featuring five helicopters at Nava Raipur on November 2 as part of the Chhattisgarh foundation day celebrations, officials said on. Chief Minister Sai said that the arrival of the world-renowned Sarang Helicopter Display Team for Chhattisgarh’s State Foundation Day celebrations is a moment of immense joy and pride for the people.