Step 1: Conceptual Understanding
The inquiry concerns the categorization of the Adi Dharma Movement. This necessitates an understanding of its origins, objectives, and constituents.
Step 2: Detailed Elucidation
The Adi Dharma movement, notably in Punjab, was a significant socio-religious undertaking by the Dalit (formerly "untouchable") castes in the early 20th century.
Its principal aims included:
Contesting Caste-Based Discrimination: The movement directly addressed the socio-religious disadvantages and discrimination inherent in the Hindu caste structure.
Establishing a Distinct Identity: It sought to forge a separate religious and social identity for Dalits, distinct from Hinduism and Sikhism, which were perceived as failing to ensure their equality.
Community Mobilization: Leaders such as Mangu Ram Mugowalia galvanized the community to advocate for their rights, dignity, and social advancement.
Given the movement's central focus on the liberation and identity formation of specific castes (Dalits) within the prevailing caste hierarchy, its classification as a Caste Based Movement is accurate.
Step 3: Conclusive Answer
The Adi Dharma Movement primarily concerned the subversion of the caste system and the advancement of lower castes. Consequently, it is categorized as a Caste Based Movement.