Overview
Ghatotkacha (Sanskrit: घटोत्कच, IAST: Ghaṭotkaca) is a character in the ancient Indian epic Mahabharata. The name is traditionally explained as a compound referring to his bald head (utkacha) shaped like a ghatam, or pot. He is described as the son of the Pandava Bhima and the rakshasi Hidimbi, and is portrayed in the epic as possessing the supernatural abilities associated with his rakshasa lineage.
In the narrative of the Kurukshetra War, Ghatotkacha is depicted as the commander of one akshauhini and as a significant warrior on the Pandava side. The epic credits him with causing extensive destruction in the ranks of the Kaurava army and with slaying several demonic adversaries, including Alambusha and Alayudha, along with other gigantic asuras encountered during the conflict.
One of the best-known episodes associated with Ghatotkacha concerns his confrontation with Karna. According to the tradition recorded in the epic, Ghatotkacha's onslaught compelled Karna to deploy the vasavi shakti, a single-use weapon that Karna had been preserving for use against Arjuna. Ghatotkacha is said to have met a hero's death in this encounter, an event regarded within the epic as turning the course of the battle in favour of the Pandavas, since the weapon could no longer be used against Arjuna.
Within the wider tradition of the Mahabharata, Ghatotkacha is remembered as a figure who embodies loyalty to his father's family and martial valour, and his story is frequently retold in regional retellings, performances and adaptations of the epic across India.
References
Adapted from the English Wikipedia article on Ghatotkacha.