It sounds like you're looking for a post or source for Game of Thrones Seasons 1–8 in Tamil dubbed , specifically from iSaidub .

However, I need to give you a direct and important warning:

Downloading or sharing copyrighted content (like Game of Thrones) from such sites is illegal in many countries (India included under the Copyright Act, 1957). It also exposes your device to malware, pop-up scams, and legal notices.