Question

which battle is known as the Mahabharata in short

Answer 1

the battle of kurukshetra is known as the Mahabharata in short. it was fought between the pandavas and kauravas , including the whole the bharatvarsha except balaram (Krishna's brother)
hope this helps

Answer 2

The war which took place in place called as Kurukshetra is known as Mahabharata in short.

Explanation:

The war was fought between two groups of people called Pandavas and Kauravas for the throne of Hasthinapuram in place called Kuru in ancient India.

Due to the fantasies and the tricks used by both the groups and the way of fighting according to the rules of the war, this war was called as Mahabharata for the modern day learners.