If you mean the Jain surname/gotra “Chandaliya”, it is generally used as a family lineage or clan name among some Jain households.

In Jain tradition, a gotra is only a worldly lineage identifier. It does not decide spiritual purity or merit. In Jain Dharma, the real focus is on Samyak Darshan, Samyak Jnana, Samyak Charitra, along with Ahimsa, Satya, and Aparigraha.

If you want, I can also explain:

• the meaning of gotra in Jainism, or
• how Jain surnames and clan names are understood in tradition.