Mahabharata Anushasna Parva Chapter 48:4

Mahabharata Anushasna Parva (Dana Dharma Parva) Chapter 48:4 From the union of the Nishada with a woman of the Vaidehi caste springs one who is called by the name of Ahindaka. The Chandala begets upon a Saupaka woman, a son that does not differ from the Chandala in status or occupation. A Nishada woman, by union with a Chandala, brings forth a son who lives in the outskirts of villages and towns. Indeed, the members of such a caste live in crematoria and are regarded by the very lowest orders as incapable of being numbered among them. Thus to these mixed castes spring up from improper and sinful union of fathers and mothers belonging to different castes. Whether they live in concealment or openly, they should be known by their occupations. The duties have been laid down in the scriptures for only the four principal orders. As regards the others the scriptures are entirely silent. Among all the orders, the members of those castes that have no duties assigned to them by the scriptures, need have no fears as to what they do (to earn their livelihood). Persons unaccustomed to the performance or for whom sacrifices have not been laid down, and who are deprived of the company and the instructions of the righteous whether numbered among the four principal orders or out of their pale, by uniting themselves with women of other castes, led not by considerations of righteousness but by uncontrolled lust, cause numerous mixed castes to come into existence whose occupations and abodes depend on the circumstances connected with the irregular unions to which they owe their origin. Having recourse to spots where four roads meet, or crematoria, or hills and mountains, or forests and trees, they build their habitations there. The ornaments they wear are made of iron. Living in such places openly, they betake themselves to their own occupations to earn their livelihood. They may be seen to live in this way, adorning their persons with ornaments and employed in the task of manufacturing diverse kinds of domestic and other utensils. Without doubt, by assisting kine and Brahmanas, and practising the virtues of abstention from cruelty, compassion, truthfulness of speech, and forgiveness, and, if need be, by preserving others by laying down their very lives, persons of the mixed castes may achieve success. I have no doubt, O chief of men, that these virtues become the causes of their success. He that is possessed of intelligence, should, taking everything into consideration, beget offspring according to the ordinances of the scriptures, upon women that have been declared proper or fit for him. A son begotten upon a woman belonging to a degraded caste, instead of rescuing the sire, brings him to grief even as a heavy weight brings to grief a swimmer desirous of crossing water. Whether a man happens to be possessed of learning or not, lust and wrath are natural attributes of humanity in this world. Women, therefore, may always be seen to drag men into the wrong path. This natural disposition of women is such that man's contact with her is productive of misery to him. Hence, men possessed of wisdom do not suffer themselves to be excessively attached to women. "'Yudhishthira said, "There are men who belong to the mixed castes, and who are of very impure birth. Though presenting the features of respectability, they are in reality disrespectable. In consequence of these external aspects we may not be able to know the truth about their birth. Are there any signs, O grandsire, by which the truth may be known about the origin of such men?