Ananda Thandavam (English: Happy Dance) is a 2009 Tamil-language film adaptation of the Sujatha Rangarajan serialized novel Pirivom Santhippom, directed by A.R. Gandhi Krishna and produced by Oscar V. Ravichandran of Aascar Films. This is one of the love stories by the late author Sujatha.The characters Raghu (Siddharth Venugopal) & Madhumitha (Tamanna Bhatia): their love story captured so many hearts that writer Sujatha, who had initially finished the first novel, started the second part due to high demand from readers.
Thandavam movie tells about the love and bond between the brothers Kashi Nathan (Mohanlal) and SwamiNathan(Nedumudi Venu) and it takes a turn when Saminathan is killed in an accident.Kashinathan realises Dasappa Kaundar(Manoj K Jayan) and minister shankar Das(Sai Kumar) are behind Swaminathan
A blind man with his 'Echolocation' power takes on a revenge mission.