It is only from sexual union with women of persons who should not have such union with them that mixed castes originate. Among the classes that are thus outside the limit of the four principal or pure castes, children are begotten upon woman belonging to the class called Sairindhri by men of the class called Magadha.
अगम्यागमनाच्चैव जायते वर्णसंकरः। बाह्यानामनुजायन्ते सैरन्ध्रयां मागधेषु च। प्रसाधनोपचारज्ञमदासं दासजीवनम्॥