Megastar Amitabh Bachchan has finished shooting for upcoming political drama "Satyagraha" in which he plays an activist.

"It's a wrap on the film 'Satyagraha' today (Wednesday). Film shooting over, releasing August 23, " Big B posted on Twitter.

Amitabh's character is said to be based on activist Anna Hazare. Directed by Prakash Jha, "Satyagraha" also features Arjun Rampal, Kareena Kapoor, Manoj Bajpayee and Amrita Rao. The film has been primarily shot in Bhopal.