Shishupala

Enraged by Shishupala's death at the rajasuya, Shalva rides the flying city Soubha to Dvaraka while Krishna is away. He slaughters Vrishni youth, burns the parks, and shouts abuse at the absent Krishna — swearing he will not return without killing him.

Yudhishthira asks Krishna why he was absent after the gambling match. Krishna reveals that while Yudhishthira was losing everything in Hastinapura, he was fighting a war of his own — against Shalva, who had attacked Dvaraka in revenge for Shishupala's death, riding a flying city called Soubha.