What happens if you touch an untouchable?

In some cultures, particularly in historical contexts like the Caste System in India, touching an "untouchable" (or someone from a marginalized caste) was believed to result in ritual impurity or social stigma for the person doing the touching. This belief stemmed from deeply ingrained social norms that enforced segregation and discrimination. While these practices have been challenged and are illegal today, the historical implications still affect social dynamics in certain areas. Touching an "untouchable" could lead to social ostracism or communal backlash, illustrating the enduring impact of caste-based discrimination.