Explanation:

- Pandit Birju Maharaj was a legendary figure in the realm of Indian classical dance.

- He was renowned for his expertise in Kathak, a dance form originating from northern India that blends storytelling through expressive gestures and intricate footwork.

- Birju Maharaj hailed from a distinguished lineage of dancers and contributed immensely to making Kathak popular worldwide.

- Odissi is a classical dance from the eastern state of Odisha known for its unique poses and lyrical movements.

- Bharatanatyam is another classical dance form from Tamil Nadu characterized by its fixed upper torso and intricate footwork.

- Manipuri originates from Manipur and emphasizes elegant, graceful movements.

Your answer: Option 2 – Kathak