Sentence:  The "Gańga-vaṇṣa minissu" are the washers of the Oliya caste, who are not only a low caste, but come below the Paduvó and Berawáyó, and are the only caste who will carry the <WSD>pingoes</WSD> of the smiths. 
Meaning of the word marked with <WSD> tags:  A flexible pole supported on one shoulder, with a load suspended from each end; a carrying pole or carrying yoke.