Question
Krishna visiting Sudra’s home or touching a Sudra
Answer
In Mahabharat era - Mahatma Vidura [महात्मा विदुर] - who was a dasi-putra (son of servant of Hastinapur's king) - was considered as Shudra (means worker class) Varna. And Sri Krishna did visit his home - when he visited as a "messenger of Pandavas" - with the purpose to avoid the war.
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