Quartigod son of Bhīma (Vāyu-paternal demigod) by Bālandharā of Kāśī. Inheritor of the Kāśī kingdom through his maternal line. The Kuru-Kāśī marriage-alliance through Bālandharā extended Bhīma's eastern-corridor influence into the Ganges-plain hegemony; Sarvaga's maternal kingship continued the dynastic continuity.