Challenges faced by traditional institutions in Manipur include:

Erosion of authority
Influence of modern governance systems
Lack of recognition by state laws
All of the above

The correct answer is: All of the above.

Traditional institutions in Manipur are facing a number of challenges, including erosion of authority, influence of modern governance systems, and lack of recognition by state laws.

Erosion of authority: Traditional institutions have been losing their authority over time, as people have become more exposed to modern ideas and values. This has led to a decline in the respect for traditional leaders and institutions, and a decrease in their ability to enforce traditional laws and customs.

Influence of modern governance systems: The introduction of modern governance systems, such as democracy and the rule of law, has also had a significant impact on traditional institutions. These systems often conflict with traditional values and practices, and can lead to a loss of power and influence for traditional leaders.

Lack of recognition by state laws: In many cases, traditional institutions are not recognized by state laws. This means that they have no legal authority, and their decisions cannot be enforced. This can make it difficult for traditional institutions to function effectively, and can lead to a further erosion of their authority.

These challenges are having a significant impact on traditional institutions in Manipur. They are making it difficult for these institutions to function effectively, and are leading to a decline in their authority and influence. This is a worrying trend, as traditional institutions play an important role in maintaining social order and cohesion. It is important to find ways to address these challenges, in order to ensure the continued survival and vitality of traditional institutions in Manipur.