The first Muslim incursion on Deccan occurred during the reign of Jalaluddin Khalji.

The Deccan region in India is known for its rich history and cultural heritage. It has witnessed several invasions and incursions by various dynasties throughout history. The first Muslim incursion on Deccan occurred during the reign of Jalaluddin Khalji, the founder of the Khalji dynasty.

Jalaluddin Khalji and his reign:
Jalaluddin Khalji was the first ruler of the Khalji dynasty in Delhi Sultanate. He ascended the throne in 1290 AD after overthrowing the last ruler of the Slave dynasty, Kaiqubad. His reign lasted for only six years, from 1290 to 1296.

The incursion on Deccan:
During his reign, Jalaluddin Khalji launched an expedition towards the Deccan region. The exact reasons for this incursion are not clear, but it is believed that it was primarily driven by the desire to expand his kingdom and establish control over the southern territories.

Objectives of the incursion:
- Expansion of the Khalji dynasty: Jalaluddin Khalji aimed to extend his authority and influence beyond the northern regions of India. By conquering the Deccan, he intended to establish a strong foothold in the southern territories.
- Economic gains: The Deccan region was known for its prosperous trade routes and wealth. By capturing this region, Jalaluddin Khalji sought to exploit its economic resources and enhance the revenue of his kingdom.
- Consolidation of power: The incursion on Deccan also served as a means to consolidate his power and establish his authority as the ruler of the Delhi Sultanate.

Outcome of the incursion:
The incursion on Deccan during the reign of Jalaluddin Khalji was not entirely successful. Although his forces managed to capture some territories in the region, they faced significant resistance from local rulers and were unable to establish full control over the Deccan.

Significance:
The incursion on Deccan by Jalaluddin Khalji marked the beginning of a series of invasions and conflicts between the Delhi Sultanate and the Deccan kingdoms. It set the stage for future incursions by subsequent rulers of the Delhi Sultanate, including his successor Ala-ud-din Khalji, who further expanded the Muslim presence in the Deccan.

In conclusion, the first Muslim incursion on Deccan occurred during the reign of Jalaluddin Khalji, the founder of the Khalji dynasty. This incursion aimed at expanding the kingdom, gaining economic benefits, and consolidating power. Although not entirely successful, it paved the way for future invasions and conflicts in the Deccan region.