The Pasi (also Pashi) are a Scheduled Caste (SC) community primarily in Uttar Pradesh, Bihar, Madhya Pradesh, West Bengal, and Jharkhand — not typically associated with Southern India or the Devanga community.
Toddy tapping (palm wine), agriculture, labor.
Gotra lists vary by sub-group and region. The previous answer incorrectly linked Pasi to Devanga (a weaving caste in South India). Pasi and Devanga are distinct communities.