Tuden Sal was a Sakiyan male, operating as both a restaurant proprietor and an associate of the Black Sun syndicate, along with other smugglers, on the planet Coruscant. His activities took place during the ten years leading up to the Clone Wars.
Back in 32 BBY, Sal, acting as an information broker, encountered a friend of Lorn Pavan. He provided Pavan's friend with intel that helped him maintain his business license during a difficult period. When Pavan found himself embroiled in Trade Federation officer Hath Monchar's scheme to leak information about the upcoming Trade Federation blockade of Naboo, realizing his own demise was imminent, Pavan entrusted his droid, I-5YQ, to Sal. Having desired the droid for a considerable time, Sal promptly erased I-Five's memory with the intention of reconfiguring its programming. However, before this reprogramming could be carried out, Sal experienced a significant financial downfall due to a hostile takeover supported by then-Senator Palpatine. Consequently, Sal sold off all his remaining possessions, including I-Five, who was acquired by a spice smuggler. Subsequently, Sal encountered I-5YQ once more, this time when the droid was in the company of Jax Pavan.
Later, in 18 BBY, after the Galactic Empire's formation, Sal became an operative for the Whiplash organization. He initiated a doomed plan to assassinate Emperor Palpatine. Ultimately, he met his end after shooting Kalibar Droosh, but not before the Imperial officer inflicted a fatal wound upon Sal.