Image: Ghatotkacha and Abhimanyu

Abhimanyu Shatters the Boulder Held by Ghatotkacha
(Wikimedia: folio of Sri Mahabharata from Paithan, Maharashtra, c. 1850)

More about Abhimanyu and Ghatotkacha at Wikipedia. For the story of Vatsala, see this article: Abhimanyu's Marriage and Death.

More images of Ghatotkacha and Abhimanyu from that series:

Abhimanyu and Subhadra Meet Ghatotkacha

Ghatotkacha Attacks Abhimanyu

Fight with Ghatotkacha