Explanation:

- Option 1: Pandit Birju Maharaj

- He is the most renowned exponent of the Lucknow Kalka-Bindadin gharana of Kathak.

- He comes from a family deeply associated with this gharana and has popularized Kathak worldwide.

- Option 2: Padma Subrahmanyam

- She is known for Bharatanatyam, not Kathak.

- Her style and contributions are related to South Indian classical dance.

- Option 3: Sonal Mansingh

- She is an accomplished Odissi dancer, and also performs Bharatanatyam.

- She is not associated with the Lucknow gharana of Kathak.

- Option 4: Guru Bipin Singh

- He is a famous exponent of Manipuri dance, not Kathak.

- His contributions are specifically in the Manipuri dance form.