1. Weak Succession:
The Mughal Empire suffered from weak succession practices where the throne was often passed on to incompetent or weak rulers. This led to internal strife, power struggles, and a lack of strong leadership, which weakened the empire's stability and governance.

2. Economic Decline:
The Mughal Empire faced economic challenges due to heavy taxation, inefficient revenue collection, and a decline in trade and commerce. This economic instability contributed to financial strain, reduced resources for governance, and weakened the empire's overall strength.

3. Military Weakness:
The military strength of the Mughal Empire declined over time due to corruption, lack of modernization, and the emergence of rival powers. Inadequate military reforms, coupled with internal conflicts and external threats, weakened the empire's ability to defend its territories and maintain control.

4. Religious Intolerance:
The Mughal Empire faced religious tensions and conflicts, particularly under rulers who showed intolerance towards non-Muslim communities. This led to social unrest, alienation of diverse populations, and a loss of support among various groups, further weakening the empire's unity and stability.

5. External Invasions:
The Mughal Empire faced invasions from various external powers, such as the Marathas, Persians, and Afghans, who exploited the empire's internal weaknesses and territorial divisions. These invasions further weakened the empire's control over its territories, eroded its authority, and contributed to its eventual decline.

Overall, a combination of weak succession practices, economic challenges, military weaknesses, religious tensions, and external invasions played a significant role in the decline of the once-powerful Mughal Empire.