Explanation:

- Option 1: Surbahar

- The Surbahar, also known as the bass sitar, is an Indian classical instrument. It's similar to the sitar but has a wider range and deeper sound. Although not Asad Ali Khan's main instrument, it's significant in Hindustani music.

- Option 2: Violin

- The violin is a versatile string instrument used globally across many music genres. It's not traditionally associated with Asad Ali Khan's expertise.

- Option 3: Tabla

- The Tabla consists of a pair of drums, used often in Indian classical music. Asad Ali Khan wasn't known for playing this percussion instrument.

- Option 4: Rudra Veena

- The Rudra Veena is a classical Indian string instrument and Asad Ali Khan was a maestro of this ancient instrument. He was one of the most prominent players of the Rudra Veena.