The two modern action-mystery films starring Robert Downey Jr. and Jude Law are the most common "Sherlock Holmes" movies found with Tamil dubbing. Sherlock Holmes (2009)
Officially, Sherlock (BBC) does not have a studio-produced Tamil dub. However, several are available on YouTube for episodes like A Scandal in Belgravia and The Reichenbach Fall . These are popular among hardcore Tamil Sherlockians. Sherlock Holmes Tamil Dubbed Movies
These are the most widely available professional Tamil dubs, often found on major streaming services. The two modern action-mystery films starring Robert Downey