Siddharth entered Indian cinema as a co-producer with his sister for the comedy film
Paisa Vasool (2004), which also starred his sister Manisha. He also collaborated as a writer for US television documentary
Terrorism: Bio Attack (2005). His acting debut was in the poorly received 2005 film called
Fun: Can Be Dangerous Sometimes. A more serious role was his second venture in the critically acclaimed
Anwar (2007), which also did poorly at the box office. Siddharth took a long break and made a comeback in the directorial debut of Pakistani actor
Rahat Kazmi, the dark comedy film
Dekh Bhai Dekh (2009), which opened to mild response. He was seen then in a film about the 26 November 2008 Mumbai attacks, entitled
Deshdrohi 2, directed by Kamaal R. Khan in 2009. ==Filmography==