Movements for self-determination or greater autonomy in Manipur have often been led by:

Tribal groups
Religious minorities
Marginalized communities
All of the above

The correct answer is: All of the above.

Manipur is a state in northeastern India. It is home to a diverse population of over 2.8 million people, including Meitei, Naga, Kuki, and other tribal groups. The state has a long history of political and social unrest, with many groups demanding greater autonomy or independence from India.

Tribal groups have been at the forefront of many of these movements. The Nagas, for example, have been fighting for independence from India since the 1940s. The Kukis have also been involved in several armed conflicts with the Indian government.

Religious minorities have also played a significant role in movements for self-determination in Manipur. The Meitei are the majority group in the state, but there are also significant Christian and Muslim minorities. These minorities have often felt marginalized by the Meitei-dominated government, and have demanded greater rights and representation.

Marginalized communities, such as women and the poor, have also been involved in movements for self-determination in Manipur. These groups have often felt excluded from the political process, and have demanded greater participation and representation.

In conclusion, movements for self-determination or greater autonomy in Manipur have often been led by tribal groups, religious minorities, and marginalized communities. These groups have all felt marginalized by the Indian government, and have demanded greater rights and representation.