Correct Answer: Kathak

Solution : The correct answer is Kathak.

Birju Maharaj was a renowned dancer of Kathak, which is one of the classical dance forms of India. He belongs to the Kalka-Bindadin gharana (a lineage or style within Kathak) and is a leading exponent of this dance form. His father, Acchan Maharaj, and uncles, Shambhu Maharaj, and Lachhu Maharaj, were also renowned Kathak dancers, making Birju Maharaj part of a distinguished family tradition.