Amir Khusrau, the famous poet, was associated with the court of Alauddin Khilji. Here is an explanation of this answer:

1. Introduction:
Amir Khusrau was a renowned poet, musician, and scholar who lived during the 13th century in India. He was known for his contributions to the fields of poetry, music, and literature. Khusrau served in the courts of several rulers, but he was most closely associated with Alauddin Khilji.

2. Alauddin Khilji:
Alauddin Khilji was the second ruler of the Khilji dynasty, which ruled the Delhi Sultanate from 1296 to 1316. He was known for his military prowess and administrative reforms. Khilji's reign is often considered as a period of great political stability and economic prosperity.

3. Amir Khusrau's association with Alauddin Khilji:
Amir Khusrau became a part of Alauddin Khilji's court and served as his court poet and musician. He was highly regarded by the Sultan and was given the title of "Amir" (noble) and "Khusrau" (king among poets), from which his name is derived. Khusrau composed numerous poems, ghazals, and qawwalis in praise of the Sultan and his achievements.

4. Contributions to literature and culture:
During his time in Alauddin Khilji's court, Amir Khusrau made significant contributions to Persian and Hindavi literature. He developed a new style of poetry called "Sufi poetry" that blended Persian and Hindavi languages. Khusrau's works were widely appreciated and had a profound influence on later poets and musicians.

5. Influence on Sufi music:
Amir Khusrau is also credited with the development of the "qawwali" genre of music. Qawwali is a form of devotional music that combines poetry, music, and Sufi mysticism. Khusrau's compositions in this genre are still popular today and have become an integral part of Sufi music traditions.

6. Conclusion:
Amir Khusrau's association with Alauddin Khilji's court played a significant role in shaping his career as a poet and musician. His contributions to literature, music, and culture continue to be celebrated and admired to this day.