Rajsuya Yagya, Shishupal Vadh - S1.E43

Yudhishthir decides to perform the Rajsuya Yagna. The first honor is rendered to Sri Krishna. Shishupal, the King of Chedi, ask, “ When there are so many Kings gathered in this assembly, why should the first honor be paid to Krishna – a cowherd boy and the son of a servant of Ugrasena?” Krishna warns Shishupal but Shishupal does not pay any heed so Sri Krishna kills him. The Rajsuya Yagna is celebrated and Yudhishthir is recognized as an Emperor.