While the series was released globally with multiple language dubs—including French, German, Japanese, and Spanish—Disney+ Hotstar has primarily focused on English and Hindi for its Indian original content rollout. There is currently no verified official Tamil audio track listed on major databases like the Dubbing Database or the official Disney+ Hotstar site .
To find "National Treasure: Edge of History" in Tamil dubbed and verified (assuming "verified" means officially released or authenticated in some way), you might want to check: national treasure edge of history tamil dubbed verified