The 31-year-old star took to Instagram to inform fans about the accident.
"Ankle injury during action but need results not excuses #training upper body #shoot," he wrote.
Sidharth is constantly giving sneak peeks to his fans on social media about the Thailand schedule of his film, which also stars Jacqueline Fernandez.
He recently posted a picture of his family, who paid him a surprise visit.
Directed by Raj Nidimoru and Krishna D K, the film is believed to be the prequel to the 2014 Hrithik Roshan-starrer "Bang Bang!".
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